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Finding the Fourth Proportional to 56,882.90, 85,326.51 and 21,826.10

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Solution

The fourth proportional to 56,882.90, 85,326.51 and 21,826.10 is: 32,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882.90 : 85,326.51 = 21,826.10 : x
  2. Step 2: Convert to fraction form
    56,882.90/85,326.51 = 21,826.10/x
  3. Step 3: Cross multiply
    56,882.90x = 85,326.51 × 21,826.10
  4. Step 4: Simplify right side
    56,882.90x = 1,862,344,939.91
  5. Step 5: Solve for x
    x = 1,862,344,939.91/56,882.90
  6. Step 6: Final answer
    x = 32,739.98

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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.