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Finding the Fourth Proportional to 42,793.04, 63,905.22 and 42,329.68

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Solution

The fourth proportional to 42,793.04, 63,905.22 and 42,329.68 is: 63,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,793.04 : 63,905.22 = 42,329.68 : x
  2. Step 2: Convert to fraction form
    42,793.04/63,905.22 = 42,329.68/x
  3. Step 3: Cross multiply
    42,793.04x = 63,905.22 × 42,329.68
  4. Step 4: Simplify right side
    42,793.04x = 2,705,087,512.93
  5. Step 5: Solve for x
    x = 2,705,087,512.93/42,793.04
  6. Step 6: Final answer
    x = 63,213.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.