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Finding the Fourth Proportional to 67,038.92, 92,503.42 and 38,739.12

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Solution

The fourth proportional to 67,038.92, 92,503.42 and 38,739.12 is: 53,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.92 : 92,503.42 = 38,739.12 : x
  2. Step 2: Convert to fraction form
    67,038.92/92,503.42 = 38,739.12/x
  3. Step 3: Cross multiply
    67,038.92x = 92,503.42 × 38,739.12
  4. Step 4: Simplify right side
    67,038.92x = 3,583,501,087.79
  5. Step 5: Solve for x
    x = 3,583,501,087.79/67,038.92
  6. Step 6: Final answer
    x = 53,454.04

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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.