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Finding the Fourth Proportional to 66,657.96, 92,011.15 and 38,374.92

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Solution

The fourth proportional to 66,657.96, 92,011.15 and 38,374.92 is: 52,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657.96 : 92,011.15 = 38,374.92 : x
  2. Step 2: Convert to fraction form
    66,657.96/92,011.15 = 38,374.92/x
  3. Step 3: Cross multiply
    66,657.96x = 92,011.15 × 38,374.92
  4. Step 4: Simplify right side
    66,657.96x = 3,530,920,520.36
  5. Step 5: Solve for x
    x = 3,530,920,520.36/66,657.96
  6. Step 6: Final answer
    x = 52,970.73

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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.