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Finding the Fourth Proportional to 56,133.92, 83,987.04 and 49,913.12

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Solution

The fourth proportional to 56,133.92, 83,987.04 and 49,913.12 is: 74,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,133.92 : 83,987.04 = 49,913.12 : x
  2. Step 2: Convert to fraction form
    56,133.92/83,987.04 = 49,913.12/x
  3. Step 3: Cross multiply
    56,133.92x = 83,987.04 × 49,913.12
  4. Step 4: Simplify right side
    56,133.92x = 4,192,055,205.96
  5. Step 5: Solve for x
    x = 4,192,055,205.96/56,133.92
  6. Step 6: Final answer
    x = 74,679.54

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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.