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Finding the Fourth Proportional to 56,855.32, 85,301.88 and 25,261

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Solution

The fourth proportional to 56,855.32, 85,301.88 and 25,261 is: 37,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,855.32 : 85,301.88 = 25,261 : x
  2. Step 2: Convert to fraction form
    56,855.32/85,301.88 = 25,261/x
  3. Step 3: Cross multiply
    56,855.32x = 85,301.88 × 25,261
  4. Step 4: Simplify right side
    56,855.32x = 2,154,810,790.68
  5. Step 5: Solve for x
    x = 2,154,810,790.68/56,855.32
  6. Step 6: Final answer
    x = 37,899.90

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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.