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Finding the Fourth Proportional to 55,763.88, 83,641.72 and 18,323.52

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Solution

The fourth proportional to 55,763.88, 83,641.72 and 18,323.52 is: 27,483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,763.88 : 83,641.72 = 18,323.52 : x
  2. Step 2: Convert to fraction form
    55,763.88/83,641.72 = 18,323.52/x
  3. Step 3: Cross multiply
    55,763.88x = 83,641.72 × 18,323.52
  4. Step 4: Simplify right side
    55,763.88x = 1,532,610,729.25
  5. Step 5: Solve for x
    x = 1,532,610,729.25/55,763.88
  6. Step 6: Final answer
    x = 27,483.93

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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.