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Finding the Fourth Proportional to 14,721.19, 22,057.52 and 8,486.46

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Solution

The fourth proportional to 14,721.19, 22,057.52 and 8,486.46 is: 12,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.19 : 22,057.52 = 8,486.46 : x
  2. Step 2: Convert to fraction form
    14,721.19/22,057.52 = 8,486.46/x
  3. Step 3: Cross multiply
    14,721.19x = 22,057.52 × 8,486.46
  4. Step 4: Simplify right side
    14,721.19x = 187,190,282.40
  5. Step 5: Solve for x
    x = 187,190,282.40/14,721.19
  6. Step 6: Final answer
    x = 12,715.71

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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.