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Finding the Fourth Proportional to 22,792.40, 34,223.80 and 12,424.40

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Solution

The fourth proportional to 22,792.40, 34,223.80 and 12,424.40 is: 18,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,792.40 : 34,223.80 = 12,424.40 : x
  2. Step 2: Convert to fraction form
    22,792.40/34,223.80 = 12,424.40/x
  3. Step 3: Cross multiply
    22,792.40x = 34,223.80 × 12,424.40
  4. Step 4: Simplify right side
    22,792.40x = 425,210,180.72
  5. Step 5: Solve for x
    x = 425,210,180.72/22,792.40
  6. Step 6: Final answer
    x = 18,655.79

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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.