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Finding the Fourth Proportional to 56,712.52, 85,062.30 and 15,162.76

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Solution

The fourth proportional to 56,712.52, 85,062.30 and 15,162.76 is: 22,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,712.52 : 85,062.30 = 15,162.76 : x
  2. Step 2: Convert to fraction form
    56,712.52/85,062.30 = 15,162.76/x
  3. Step 3: Cross multiply
    56,712.52x = 85,062.30 × 15,162.76
  4. Step 4: Simplify right side
    56,712.52x = 1,289,779,374.71
  5. Step 5: Solve for x
    x = 1,289,779,374.71/56,712.52
  6. Step 6: Final answer
    x = 22,742.41

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1.5x scale

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.