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Finding the Fourth Proportional to 63,508.29, 87,681.03 and 40,886.46

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Solution

The fourth proportional to 63,508.29, 87,681.03 and 40,886.46 is: 56,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,508.29 : 87,681.03 = 40,886.46 : x
  2. Step 2: Convert to fraction form
    63,508.29/87,681.03 = 40,886.46/x
  3. Step 3: Cross multiply
    63,508.29x = 87,681.03 × 40,886.46
  4. Step 4: Simplify right side
    63,508.29x = 3,584,966,925.85
  5. Step 5: Solve for x
    x = 3,584,966,925.85/63,508.29
  6. Step 6: Final answer
    x = 56,448.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.