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Finding the Fourth Proportional to 48,641.20, 72,952.80 and 13,573.60

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Solution

The fourth proportional to 48,641.20, 72,952.80 and 13,573.60 is: 20,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,641.20 : 72,952.80 = 13,573.60 : x
  2. Step 2: Convert to fraction form
    48,641.20/72,952.80 = 13,573.60/x
  3. Step 3: Cross multiply
    48,641.20x = 72,952.80 × 13,573.60
  4. Step 4: Simplify right side
    48,641.20x = 990,232,126.08
  5. Step 5: Solve for x
    x = 990,232,126.08/48,641.20
  6. Step 6: Final answer
    x = 20,357.89

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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.