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Finding the Fourth Proportional to 48,009.60, 72,014.40 and 43,862.40

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Solution

The fourth proportional to 48,009.60, 72,014.40 and 43,862.40 is: 65,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.60 : 72,014.40 = 43,862.40 : x
  2. Step 2: Convert to fraction form
    48,009.60/72,014.40 = 43,862.40/x
  3. Step 3: Cross multiply
    48,009.60x = 72,014.40 × 43,862.40
  4. Step 4: Simplify right side
    48,009.60x = 3,158,724,418.56
  5. Step 5: Solve for x
    x = 3,158,724,418.56/48,009.60
  6. Step 6: Final answer
    x = 65,793.60

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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.