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Finding the Fourth Proportional to 22,821.60, 34,232.40 and 19,322.40

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Solution

The fourth proportional to 22,821.60, 34,232.40 and 19,322.40 is: 28,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,821.60 : 34,232.40 = 19,322.40 : x
  2. Step 2: Convert to fraction form
    22,821.60/34,232.40 = 19,322.40/x
  3. Step 3: Cross multiply
    22,821.60x = 34,232.40 × 19,322.40
  4. Step 4: Simplify right side
    22,821.60x = 661,452,125.76
  5. Step 5: Solve for x
    x = 661,452,125.76/22,821.60
  6. Step 6: Final answer
    x = 28,983.60

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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.