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Finding the Fourth Proportional to 42,703.20, 59,065.20 and 37,735.20

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Solution

The fourth proportional to 42,703.20, 59,065.20 and 37,735.20 is: 52,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.20 : 59,065.20 = 37,735.20 : x
  2. Step 2: Convert to fraction form
    42,703.20/59,065.20 = 37,735.20/x
  3. Step 3: Cross multiply
    42,703.20x = 59,065.20 × 37,735.20
  4. Step 4: Simplify right side
    42,703.20x = 2,228,837,135.04
  5. Step 5: Solve for x
    x = 2,228,837,135.04/42,703.20
  6. Step 6: Final answer
    x = 52,193.68

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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.