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Finding the Fourth Proportional to 24,420.70, 33,700.78 and 13,242.70

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Solution

The fourth proportional to 24,420.70, 33,700.78 and 13,242.70 is: 18,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,420.70 : 33,700.78 = 13,242.70 : x
  2. Step 2: Convert to fraction form
    24,420.70/33,700.78 = 13,242.70/x
  3. Step 3: Cross multiply
    24,420.70x = 33,700.78 × 13,242.70
  4. Step 4: Simplify right side
    24,420.70x = 446,289,319.31
  5. Step 5: Solve for x
    x = 446,289,319.31/24,420.70
  6. Step 6: Final answer
    x = 18,275.04

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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.