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Finding the Fourth Proportional to 25,220, 34,803.84 and 14,042.24

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Solution

The fourth proportional to 25,220, 34,803.84 and 14,042.24 is: 19,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,220 : 34,803.84 = 14,042.24 : x
  2. Step 2: Convert to fraction form
    25,220/34,803.84 = 14,042.24/x
  3. Step 3: Cross multiply
    25,220x = 34,803.84 × 14,042.24
  4. Step 4: Simplify right side
    25,220x = 488,723,874.20
  5. Step 5: Solve for x
    x = 488,723,874.20/25,220
  6. Step 6: Final answer
    x = 19,378.42

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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.