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Finding the Fourth Proportional to 18,307.91, 25,264.49 and 10,349.79

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Solution

The fourth proportional to 18,307.91, 25,264.49 and 10,349.79 is: 14,282.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.91 : 25,264.49 = 10,349.79 : x
  2. Step 2: Convert to fraction form
    18,307.91/25,264.49 = 10,349.79/x
  3. Step 3: Cross multiply
    18,307.91x = 25,264.49 × 10,349.79
  4. Step 4: Simplify right side
    18,307.91x = 261,482,114.21
  5. Step 5: Solve for x
    x = 261,482,114.21/18,307.91
  6. Step 6: Final answer
    x = 14,282.47

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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.