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Finding the Fourth Proportional to 66,008.92, 99,039.30 and 29,047

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Solution

The fourth proportional to 66,008.92, 99,039.30 and 29,047 is: 43,581.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,008.92 : 99,039.30 = 29,047 : x
  2. Step 2: Convert to fraction form
    66,008.92/99,039.30 = 29,047/x
  3. Step 3: Cross multiply
    66,008.92x = 99,039.30 × 29,047
  4. Step 4: Simplify right side
    66,008.92x = 2,876,794,547.10
  5. Step 5: Solve for x
    x = 2,876,794,547.10/66,008.92
  6. Step 6: Final answer
    x = 43,581.91

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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.