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Finding the Fourth Proportional to 18,348.08, 25,320.48 and 9,964.58

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Solution

The fourth proportional to 18,348.08, 25,320.48 and 9,964.58 is: 13,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.08 : 25,320.48 = 9,964.58 : x
  2. Step 2: Convert to fraction form
    18,348.08/25,320.48 = 9,964.58/x
  3. Step 3: Cross multiply
    18,348.08x = 25,320.48 × 9,964.58
  4. Step 4: Simplify right side
    18,348.08x = 252,307,948.60
  5. Step 5: Solve for x
    x = 252,307,948.60/18,348.08
  6. Step 6: Final answer
    x = 13,751.19

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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.