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Finding the Fourth Proportional to 67,640.80, 93,347.05 and 37,425.63

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Solution

The fourth proportional to 67,640.80, 93,347.05 and 37,425.63 is: 51,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.80 : 93,347.05 = 37,425.63 : x
  2. Step 2: Convert to fraction form
    67,640.80/93,347.05 = 37,425.63/x
  3. Step 3: Cross multiply
    67,640.80x = 93,347.05 × 37,425.63
  4. Step 4: Simplify right side
    67,640.80x = 3,493,572,154.89
  5. Step 5: Solve for x
    x = 3,493,572,154.89/67,640.80
  6. Step 6: Final answer
    x = 51,648.89

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1.5x scale

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.