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Finding the Fourth Proportional to 15,325.74, 22,986.99 and 9,480.78

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Solution

The fourth proportional to 15,325.74, 22,986.99 and 9,480.78 is: 14,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.74 : 22,986.99 = 9,480.78 : x
  2. Step 2: Convert to fraction form
    15,325.74/22,986.99 = 9,480.78/x
  3. Step 3: Cross multiply
    15,325.74x = 22,986.99 × 9,480.78
  4. Step 4: Simplify right side
    15,325.74x = 217,934,595.05
  5. Step 5: Solve for x
    x = 217,934,595.05/15,325.74
  6. Step 6: Final answer
    x = 14,220.17

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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.