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Finding the Fourth Proportional to 70,593.92, 105,728.28 and 42,452.24

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Solution

The fourth proportional to 70,593.92, 105,728.28 and 42,452.24 is: 63,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593.92 : 105,728.28 = 42,452.24 : x
  2. Step 2: Convert to fraction form
    70,593.92/105,728.28 = 42,452.24/x
  3. Step 3: Cross multiply
    70,593.92x = 105,728.28 × 42,452.24
  4. Step 4: Simplify right side
    70,593.92x = 4,488,402,317.35
  5. Step 5: Solve for x
    x = 4,488,402,317.35/70,593.92
  6. Step 6: Final answer
    x = 63,580.58

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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.