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Finding the Fourth Proportional to 60,428.80, 90,643.20 and 16,062.40

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Solution

The fourth proportional to 60,428.80, 90,643.20 and 16,062.40 is: 24,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,428.80 : 90,643.20 = 16,062.40 : x
  2. Step 2: Convert to fraction form
    60,428.80/90,643.20 = 16,062.40/x
  3. Step 3: Cross multiply
    60,428.80x = 90,643.20 × 16,062.40
  4. Step 4: Simplify right side
    60,428.80x = 1,455,947,335.68
  5. Step 5: Solve for x
    x = 1,455,947,335.68/60,428.80
  6. Step 6: Final answer
    x = 24,093.60

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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.