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Finding the Fourth Proportional to 48,400.48, 72,600.64 and 13,340.40

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Solution

The fourth proportional to 48,400.48, 72,600.64 and 13,340.40 is: 20,010.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,400.48 : 72,600.64 = 13,340.40 : x
  2. Step 2: Convert to fraction form
    48,400.48/72,600.64 = 13,340.40/x
  3. Step 3: Cross multiply
    48,400.48x = 72,600.64 × 13,340.40
  4. Step 4: Simplify right side
    48,400.48x = 968,521,577.86
  5. Step 5: Solve for x
    x = 968,521,577.86/48,400.48
  6. Step 6: Final answer
    x = 20,010.58

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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.