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Finding the Fourth Proportional to 66,063.71, 99,098.91 and 18,682.22

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Solution

The fourth proportional to 66,063.71, 99,098.91 and 18,682.22 is: 28,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.71 : 99,098.91 = 18,682.22 : x
  2. Step 2: Convert to fraction form
    66,063.71/99,098.91 = 18,682.22/x
  3. Step 3: Cross multiply
    66,063.71x = 99,098.91 × 18,682.22
  4. Step 4: Simplify right side
    66,063.71x = 1,851,387,886.13
  5. Step 5: Solve for x
    x = 1,851,387,886.13/66,063.71
  6. Step 6: Final answer
    x = 28,024.28

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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.