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Finding the Fourth Proportional to 66,484.40, 99,641.28 and 29,034.32

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Solution

The fourth proportional to 66,484.40, 99,641.28 and 29,034.32 is: 43,514.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,484.40 : 99,641.28 = 29,034.32 : x
  2. Step 2: Convert to fraction form
    66,484.40/99,641.28 = 29,034.32/x
  3. Step 3: Cross multiply
    66,484.40x = 99,641.28 × 29,034.32
  4. Step 4: Simplify right side
    66,484.40x = 2,893,016,808.73
  5. Step 5: Solve for x
    x = 2,893,016,808.73/66,484.40
  6. Step 6: Final answer
    x = 43,514.22

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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.