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Finding the Fourth Proportional to 48,868.80, 73,303.20 and 28,132.80

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Solution

The fourth proportional to 48,868.80, 73,303.20 and 28,132.80 is: 42,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,868.80 : 73,303.20 = 28,132.80 : x
  2. Step 2: Convert to fraction form
    48,868.80/73,303.20 = 28,132.80/x
  3. Step 3: Cross multiply
    48,868.80x = 73,303.20 × 28,132.80
  4. Step 4: Simplify right side
    48,868.80x = 2,062,224,264.96
  5. Step 5: Solve for x
    x = 2,062,224,264.96/48,868.80
  6. Step 6: Final answer
    x = 42,199.20

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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.