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Finding the Fourth Proportional to 55,995.48, 83,926.44 and 39,036.78

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Solution

The fourth proportional to 55,995.48, 83,926.44 and 39,036.78 is: 58,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,995.48 : 83,926.44 = 39,036.78 : x
  2. Step 2: Convert to fraction form
    55,995.48/83,926.44 = 39,036.78/x
  3. Step 3: Cross multiply
    55,995.48x = 83,926.44 × 39,036.78
  4. Step 4: Simplify right side
    55,995.48x = 3,276,217,974.46
  5. Step 5: Solve for x
    x = 3,276,217,974.46/55,995.48
  6. Step 6: Final answer
    x = 58,508.61

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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.