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Finding the Fourth Proportional to 42,404.89, 63,636.50 and 14,702.89

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Solution

The fourth proportional to 42,404.89, 63,636.50 and 14,702.89 is: 22,064.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,404.89 : 63,636.50 = 14,702.89 : x
  2. Step 2: Convert to fraction form
    42,404.89/63,636.50 = 14,702.89/x
  3. Step 3: Cross multiply
    42,404.89x = 63,636.50 × 14,702.89
  4. Step 4: Simplify right side
    42,404.89x = 935,640,459.49
  5. Step 5: Solve for x
    x = 935,640,459.49/42,404.89
  6. Step 6: Final answer
    x = 22,064.45

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1.5x scale

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.