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Finding the Fourth Proportional to 48,661.47, 72,991.80 and 32,893.20

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Solution

The fourth proportional to 48,661.47, 72,991.80 and 32,893.20 is: 49,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,661.47 : 72,991.80 = 32,893.20 : x
  2. Step 2: Convert to fraction form
    48,661.47/72,991.80 = 32,893.20/x
  3. Step 3: Cross multiply
    48,661.47x = 72,991.80 × 32,893.20
  4. Step 4: Simplify right side
    48,661.47x = 2,400,933,875.76
  5. Step 5: Solve for x
    x = 2,400,933,875.76/48,661.47
  6. Step 6: Final answer
    x = 49,339.53

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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.