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Finding the Fourth Proportional to 63,165.52, 94,758 and 21,031.16

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Solution

The fourth proportional to 63,165.52, 94,758 and 21,031.16 is: 31,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,165.52 : 94,758 = 21,031.16 : x
  2. Step 2: Convert to fraction form
    63,165.52/94,758 = 21,031.16/x
  3. Step 3: Cross multiply
    63,165.52x = 94,758 × 21,031.16
  4. Step 4: Simplify right side
    63,165.52x = 1,992,870,659.28
  5. Step 5: Solve for x
    x = 1,992,870,659.28/63,165.52
  6. Step 6: Final answer
    x = 31,549.98

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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.