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Finding the Third Proportional to 28,681.88 and 63,037.13

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Solution

The third proportional to 28,681.88 and 63,037.13 is: 138,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.88 : 63,037.13 = 63,037.13 : x
  2. Step 2: Convert to fraction form
    28,681.88/63,037.13 = 63,037.13/x
  3. Step 3: Cross multiply
    28,681.88x = 63,037.13 × 63,037.13
  4. Step 4: Simplify right side
    28,681.88x = 3,973,679,128.27
  5. Step 5: Solve for x
    x = 3,973,679,128.27/28,681.88
  6. Step 6: Final answer
    x = 138,543.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.