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Finding the Fourth Proportional to 22,965.60, 34,448.40 and 20,924.40

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Solution

The fourth proportional to 22,965.60, 34,448.40 and 20,924.40 is: 31,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,965.60 : 34,448.40 = 20,924.40 : x
  2. Step 2: Convert to fraction form
    22,965.60/34,448.40 = 20,924.40/x
  3. Step 3: Cross multiply
    22,965.60x = 34,448.40 × 20,924.40
  4. Step 4: Simplify right side
    22,965.60x = 720,812,100.96
  5. Step 5: Solve for x
    x = 720,812,100.96/22,965.60
  6. Step 6: Final answer
    x = 31,386.60

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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.