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Finding the Fourth Proportional to 10,329.97, 15,587.28 and 10,329.97

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Solution

The fourth proportional to 10,329.97, 15,587.28 and 10,329.97 is: 15,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.97 : 15,587.28 = 10,329.97 : x
  2. Step 2: Convert to fraction form
    10,329.97/15,587.28 = 10,329.97/x
  3. Step 3: Cross multiply
    10,329.97x = 15,587.28 × 10,329.97
  4. Step 4: Simplify right side
    10,329.97x = 161,016,134.78
  5. Step 5: Solve for x
    x = 161,016,134.78/10,329.97
  6. Step 6: Final answer
    x = 15,587.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.