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Finding the Fourth Proportional to 18,307.68, 25,264.62 and 9,924.18

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Solution

The fourth proportional to 18,307.68, 25,264.62 and 9,924.18 is: 13,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.68 : 25,264.62 = 9,924.18 : x
  2. Step 2: Convert to fraction form
    18,307.68/25,264.62 = 9,924.18/x
  3. Step 3: Cross multiply
    18,307.68x = 25,264.62 × 9,924.18
  4. Step 4: Simplify right side
    18,307.68x = 250,730,636.51
  5. Step 5: Solve for x
    x = 250,730,636.51/18,307.68
  6. Step 6: Final answer
    x = 13,695.38

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Half scale
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Double scale
Find fourth proportional to 18,308.68, 25,266 and 9,925.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.