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Finding the Fourth Proportional to 7,539.74, 10,404.32 and 4,353.17

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Solution

The fourth proportional to 7,539.74, 10,404.32 and 4,353.17 is: 6,007.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.74 : 10,404.32 = 4,353.17 : x
  2. Step 2: Convert to fraction form
    7,539.74/10,404.32 = 4,353.17/x
  3. Step 3: Cross multiply
    7,539.74x = 10,404.32 × 4,353.17
  4. Step 4: Simplify right side
    7,539.74x = 45,291,699.91
  5. Step 5: Solve for x
    x = 45,291,699.91/7,539.74
  6. Step 6: Final answer
    x = 6,007.07

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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.