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Finding the Fourth Proportional to 66,472.92, 99,746.64 and 35,307.36

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Solution

The fourth proportional to 66,472.92, 99,746.64 and 35,307.36 is: 52,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.92 : 99,746.64 = 35,307.36 : x
  2. Step 2: Convert to fraction form
    66,472.92/99,746.64 = 35,307.36/x
  3. Step 3: Cross multiply
    66,472.92x = 99,746.64 × 35,307.36
  4. Step 4: Simplify right side
    66,472.92x = 3,521,790,527.27
  5. Step 5: Solve for x
    x = 3,521,790,527.27/66,472.92
  6. Step 6: Final answer
    x = 52,980.83

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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.