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Finding the Fourth Proportional to 66,362.64, 99,541.48 and 16,442.88

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Solution

The fourth proportional to 66,362.64, 99,541.48 and 16,442.88 is: 24,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362.64 : 99,541.48 = 16,442.88 : x
  2. Step 2: Convert to fraction form
    66,362.64/99,541.48 = 16,442.88/x
  3. Step 3: Cross multiply
    66,362.64x = 99,541.48 × 16,442.88
  4. Step 4: Simplify right side
    66,362.64x = 1,636,748,610.66
  5. Step 5: Solve for x
    x = 1,636,748,610.66/66,362.64
  6. Step 6: Final answer
    x = 24,663.71

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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.