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Finding the Fourth Proportional to 55,873.01, 83,862.17 and 20,368.65

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Solution

The fourth proportional to 55,873.01, 83,862.17 and 20,368.65 is: 30,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,873.01 : 83,862.17 = 20,368.65 : x
  2. Step 2: Convert to fraction form
    55,873.01/83,862.17 = 20,368.65/x
  3. Step 3: Cross multiply
    55,873.01x = 83,862.17 × 20,368.65
  4. Step 4: Simplify right side
    55,873.01x = 1,708,159,087.13
  5. Step 5: Solve for x
    x = 1,708,159,087.13/55,873.01
  6. Step 6: Final answer
    x = 30,572.17

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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.