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Finding the Fourth Proportional to 66,339.92, 99,451.06 and 47,572.76

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Solution

The fourth proportional to 66,339.92, 99,451.06 and 47,572.76 is: 71,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,339.92 : 99,451.06 = 47,572.76 : x
  2. Step 2: Convert to fraction form
    66,339.92/99,451.06 = 47,572.76/x
  3. Step 3: Cross multiply
    66,339.92x = 99,451.06 × 47,572.76
  4. Step 4: Simplify right side
    66,339.92x = 4,731,161,409.13
  5. Step 5: Solve for x
    x = 4,731,161,409.13/66,339.92
  6. Step 6: Final answer
    x = 71,316.96

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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.