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Finding the Fourth Proportional to 82,790.52, 124,186.95 and 23,626.20

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Solution

The fourth proportional to 82,790.52, 124,186.95 and 23,626.20 is: 35,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,790.52 : 124,186.95 = 23,626.20 : x
  2. Step 2: Convert to fraction form
    82,790.52/124,186.95 = 23,626.20/x
  3. Step 3: Cross multiply
    82,790.52x = 124,186.95 × 23,626.20
  4. Step 4: Simplify right side
    82,790.52x = 2,934,064,979.02
  5. Step 5: Solve for x
    x = 2,934,064,979.02/82,790.52
  6. Step 6: Final answer
    x = 35,439.62

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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.