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Finding the Fourth Proportional to 48,598.80, 72,752.40 and 28,867.20

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Solution

The fourth proportional to 48,598.80, 72,752.40 and 28,867.20 is: 43,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,598.80 : 72,752.40 = 28,867.20 : x
  2. Step 2: Convert to fraction form
    48,598.80/72,752.40 = 28,867.20/x
  3. Step 3: Cross multiply
    48,598.80x = 72,752.40 × 28,867.20
  4. Step 4: Simplify right side
    48,598.80x = 2,100,158,081.28
  5. Step 5: Solve for x
    x = 2,100,158,081.28/48,598.80
  6. Step 6: Final answer
    x = 43,214.20

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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.