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Finding the Fourth Proportional to 24,420.87, 33,700.86 and 13,242.87

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Solution

The fourth proportional to 24,420.87, 33,700.86 and 13,242.87 is: 18,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,420.87 : 33,700.86 = 13,242.87 : x
  2. Step 2: Convert to fraction form
    24,420.87/33,700.86 = 13,242.87/x
  3. Step 3: Cross multiply
    24,420.87x = 33,700.86 × 13,242.87
  4. Step 4: Simplify right side
    24,420.87x = 446,296,107.87
  5. Step 5: Solve for x
    x = 446,296,107.87/24,420.87
  6. Step 6: Final answer
    x = 18,275.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.