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Finding the Fourth Proportional to 57,965.40, 87,053.70 and 34,637.40

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Solution

The fourth proportional to 57,965.40, 87,053.70 and 34,637.40 is: 52,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,965.40 : 87,053.70 = 34,637.40 : x
  2. Step 2: Convert to fraction form
    57,965.40/87,053.70 = 34,637.40/x
  3. Step 3: Cross multiply
    57,965.40x = 87,053.70 × 34,637.40
  4. Step 4: Simplify right side
    57,965.40x = 3,015,313,828.38
  5. Step 5: Solve for x
    x = 3,015,313,828.38/57,965.40
  6. Step 6: Final answer
    x = 52,019.20

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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.