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Finding the Fourth Proportional to 57,895.52, 86,750.40 and 35,643.20

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Solution

The fourth proportional to 57,895.52, 86,750.40 and 35,643.20 is: 53,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,895.52 : 86,750.40 = 35,643.20 : x
  2. Step 2: Convert to fraction form
    57,895.52/86,750.40 = 35,643.20/x
  3. Step 3: Cross multiply
    57,895.52x = 86,750.40 × 35,643.20
  4. Step 4: Simplify right side
    57,895.52x = 3,092,061,857.28
  5. Step 5: Solve for x
    x = 3,092,061,857.28/57,895.52
  6. Step 6: Final answer
    x = 53,407.62

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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.