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Finding the Fourth Proportional to 55,998.78, 83,999.28 and 16,555.86

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Solution

The fourth proportional to 55,998.78, 83,999.28 and 16,555.86 is: 24,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.78 : 83,999.28 = 16,555.86 : x
  2. Step 2: Convert to fraction form
    55,998.78/83,999.28 = 16,555.86/x
  3. Step 3: Cross multiply
    55,998.78x = 83,999.28 × 16,555.86
  4. Step 4: Simplify right side
    55,998.78x = 1,390,680,319.78
  5. Step 5: Solve for x
    x = 1,390,680,319.78/55,998.78
  6. Step 6: Final answer
    x = 24,834.12

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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.