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Finding the Fourth Proportional to 25,681.69, 35,440.68 and 14,503.69

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Solution

The fourth proportional to 25,681.69, 35,440.68 and 14,503.69 is: 20,015.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,681.69 : 35,440.68 = 14,503.69 : x
  2. Step 2: Convert to fraction form
    25,681.69/35,440.68 = 14,503.69/x
  3. Step 3: Cross multiply
    25,681.69x = 35,440.68 × 14,503.69
  4. Step 4: Simplify right side
    25,681.69x = 514,020,636.11
  5. Step 5: Solve for x
    x = 514,020,636.11/25,681.69
  6. Step 6: Final answer
    x = 20,015.06

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Half scale
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Double scale
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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.