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Finding the Fourth Proportional to 67,585.92, 101,372.40 and 20,826.24

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Solution

The fourth proportional to 67,585.92, 101,372.40 and 20,826.24 is: 31,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,585.92 : 101,372.40 = 20,826.24 : x
  2. Step 2: Convert to fraction form
    67,585.92/101,372.40 = 20,826.24/x
  3. Step 3: Cross multiply
    67,585.92x = 101,372.40 × 20,826.24
  4. Step 4: Simplify right side
    67,585.92x = 2,111,205,931.78
  5. Step 5: Solve for x
    x = 2,111,205,931.78/67,585.92
  6. Step 6: Final answer
    x = 31,237.36

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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.