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Finding the Fourth Proportional to 48,155.60, 72,211.80 and 21,846.80

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Solution

The fourth proportional to 48,155.60, 72,211.80 and 21,846.80 is: 32,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,155.60 : 72,211.80 = 21,846.80 : x
  2. Step 2: Convert to fraction form
    48,155.60/72,211.80 = 21,846.80/x
  3. Step 3: Cross multiply
    48,155.60x = 72,211.80 × 21,846.80
  4. Step 4: Simplify right side
    48,155.60x = 1,577,596,752.24
  5. Step 5: Solve for x
    x = 1,577,596,752.24/48,155.60
  6. Step 6: Final answer
    x = 32,760.40

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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.