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Finding the Fourth Proportional to 22,812.48, 34,220.88 and 7,232.40

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Solution

The fourth proportional to 22,812.48, 34,220.88 and 7,232.40 is: 10,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.48 : 34,220.88 = 7,232.40 : x
  2. Step 2: Convert to fraction form
    22,812.48/34,220.88 = 7,232.40/x
  3. Step 3: Cross multiply
    22,812.48x = 34,220.88 × 7,232.40
  4. Step 4: Simplify right side
    22,812.48x = 247,499,092.51
  5. Step 5: Solve for x
    x = 247,499,092.51/22,812.48
  6. Step 6: Final answer
    x = 10,849.28

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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.