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Finding the Fourth Proportional to 22,923.60, 34,385.40 and 20,153.40

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Solution

The fourth proportional to 22,923.60, 34,385.40 and 20,153.40 is: 30,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,923.60 : 34,385.40 = 20,153.40 : x
  2. Step 2: Convert to fraction form
    22,923.60/34,385.40 = 20,153.40/x
  3. Step 3: Cross multiply
    22,923.60x = 34,385.40 × 20,153.40
  4. Step 4: Simplify right side
    22,923.60x = 692,982,720.36
  5. Step 5: Solve for x
    x = 692,982,720.36/22,923.60
  6. Step 6: Final answer
    x = 30,230.10

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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.