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Finding the Fourth Proportional to 55,998.72, 83,988.36 and 19,062.72

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Solution

The fourth proportional to 55,998.72, 83,988.36 and 19,062.72 is: 28,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.72 : 83,988.36 = 19,062.72 : x
  2. Step 2: Convert to fraction form
    55,998.72/83,988.36 = 19,062.72/x
  3. Step 3: Cross multiply
    55,998.72x = 83,988.36 × 19,062.72
  4. Step 4: Simplify right side
    55,998.72x = 1,601,046,589.94
  5. Step 5: Solve for x
    x = 1,601,046,589.94/55,998.72
  6. Step 6: Final answer
    x = 28,590.77

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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.