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Finding the Fourth Proportional to 56,898.25, 85,347.38 and 15,345.25

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Solution

The fourth proportional to 56,898.25, 85,347.38 and 15,345.25 is: 23,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,898.25 : 85,347.38 = 15,345.25 : x
  2. Step 2: Convert to fraction form
    56,898.25/85,347.38 = 15,345.25/x
  3. Step 3: Cross multiply
    56,898.25x = 85,347.38 × 15,345.25
  4. Step 4: Simplify right side
    56,898.25x = 1,309,676,882.95
  5. Step 5: Solve for x
    x = 1,309,676,882.95/56,898.25
  6. Step 6: Final answer
    x = 23,017.88

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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.