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Finding the Fourth Proportional to 24,643.20, 36,969.60 and 10,603.20

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Solution

The fourth proportional to 24,643.20, 36,969.60 and 10,603.20 is: 15,906.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,643.20 : 36,969.60 = 10,603.20 : x
  2. Step 2: Convert to fraction form
    24,643.20/36,969.60 = 10,603.20/x
  3. Step 3: Cross multiply
    24,643.20x = 36,969.60 × 10,603.20
  4. Step 4: Simplify right side
    24,643.20x = 391,996,062.72
  5. Step 5: Solve for x
    x = 391,996,062.72/24,643.20
  6. Step 6: Final answer
    x = 15,906.87

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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.