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Finding the Fourth Proportional to 65,192.57, 89,967.90 and 38,337.56

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Solution

The fourth proportional to 65,192.57, 89,967.90 and 38,337.56 is: 52,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.57 : 89,967.90 = 38,337.56 : x
  2. Step 2: Convert to fraction form
    65,192.57/89,967.90 = 38,337.56/x
  3. Step 3: Cross multiply
    65,192.57x = 89,967.90 × 38,337.56
  4. Step 4: Simplify right side
    65,192.57x = 3,449,149,764.32
  5. Step 5: Solve for x
    x = 3,449,149,764.32/65,192.57
  6. Step 6: Final answer
    x = 52,907.10

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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.