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Finding the Fourth Proportional to 22,822.40, 34,233.60 and 19,323.20

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Solution

The fourth proportional to 22,822.40, 34,233.60 and 19,323.20 is: 28,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,822.40 : 34,233.60 = 19,323.20 : x
  2. Step 2: Convert to fraction form
    22,822.40/34,233.60 = 19,323.20/x
  3. Step 3: Cross multiply
    22,822.40x = 34,233.60 × 19,323.20
  4. Step 4: Simplify right side
    22,822.40x = 661,502,699.52
  5. Step 5: Solve for x
    x = 661,502,699.52/22,822.40
  6. Step 6: Final answer
    x = 28,984.80

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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.