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Finding the Fourth Proportional to 55,998.72, 83,998.08 and 38,415.24

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Solution

The fourth proportional to 55,998.72, 83,998.08 and 38,415.24 is: 57,622.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.72 : 83,998.08 = 38,415.24 : x
  2. Step 2: Convert to fraction form
    55,998.72/83,998.08 = 38,415.24/x
  3. Step 3: Cross multiply
    55,998.72x = 83,998.08 × 38,415.24
  4. Step 4: Simplify right side
    55,998.72x = 3,226,806,402.74
  5. Step 5: Solve for x
    x = 3,226,806,402.74/55,998.72
  6. Step 6: Final answer
    x = 57,622.86

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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.