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Finding the Fourth Proportional to 10,425.17, 15,641.43 and 6,929.06

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Solution

The fourth proportional to 10,425.17, 15,641.43 and 6,929.06 is: 10,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.17 : 15,641.43 = 6,929.06 : x
  2. Step 2: Convert to fraction form
    10,425.17/15,641.43 = 6,929.06/x
  3. Step 3: Cross multiply
    10,425.17x = 15,641.43 × 6,929.06
  4. Step 4: Simplify right side
    10,425.17x = 108,380,346.76
  5. Step 5: Solve for x
    x = 108,380,346.76/10,425.17
  6. Step 6: Final answer
    x = 10,396.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.