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Finding the Fourth Proportional to 55,565.36, 83,348.04 and 18,655.28

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Solution

The fourth proportional to 55,565.36, 83,348.04 and 18,655.28 is: 27,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,565.36 : 83,348.04 = 18,655.28 : x
  2. Step 2: Convert to fraction form
    55,565.36/83,348.04 = 18,655.28/x
  3. Step 3: Cross multiply
    55,565.36x = 83,348.04 × 18,655.28
  4. Step 4: Simplify right side
    55,565.36x = 1,554,881,023.65
  5. Step 5: Solve for x
    x = 1,554,881,023.65/55,565.36
  6. Step 6: Final answer
    x = 27,982.92

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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.