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Finding the Fourth Proportional to 82,386.70, 123,600.30 and 23,221.60

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Solution

The fourth proportional to 82,386.70, 123,600.30 and 23,221.60 is: 34,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,386.70 : 123,600.30 = 23,221.60 : x
  2. Step 2: Convert to fraction form
    82,386.70/123,600.30 = 23,221.60/x
  3. Step 3: Cross multiply
    82,386.70x = 123,600.30 × 23,221.60
  4. Step 4: Simplify right side
    82,386.70x = 2,870,196,726.48
  5. Step 5: Solve for x
    x = 2,870,196,726.48/82,386.70
  6. Step 6: Final answer
    x = 34,838.11

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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.