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Finding the Fourth Proportional to 22,800.49, 34,200.43 and 7,218.12

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Solution

The fourth proportional to 22,800.49, 34,200.43 and 7,218.12 is: 10,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,800.49 : 34,200.43 = 7,218.12 : x
  2. Step 2: Convert to fraction form
    22,800.49/34,200.43 = 7,218.12/x
  3. Step 3: Cross multiply
    22,800.49x = 34,200.43 × 7,218.12
  4. Step 4: Simplify right side
    22,800.49x = 246,862,807.79
  5. Step 5: Solve for x
    x = 246,862,807.79/22,800.49
  6. Step 6: Final answer
    x = 10,827.08

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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.