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Finding the Fourth Proportional to 42,712.80, 58,943.40 and 23,593.80

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Solution

The fourth proportional to 42,712.80, 58,943.40 and 23,593.80 is: 32,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.80 : 58,943.40 = 23,593.80 : x
  2. Step 2: Convert to fraction form
    42,712.80/58,943.40 = 23,593.80/x
  3. Step 3: Cross multiply
    42,712.80x = 58,943.40 × 23,593.80
  4. Step 4: Simplify right side
    42,712.80x = 1,390,698,790.92
  5. Step 5: Solve for x
    x = 1,390,698,790.92/42,712.80
  6. Step 6: Final answer
    x = 32,559.30

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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.