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Finding the Fourth Proportional to 22,812.10, 34,218.15 and 21,904.90

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Solution

The fourth proportional to 22,812.10, 34,218.15 and 21,904.90 is: 32,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,812.10 : 34,218.15 = 21,904.90 : x
  2. Step 2: Convert to fraction form
    22,812.10/34,218.15 = 21,904.90/x
  3. Step 3: Cross multiply
    22,812.10x = 34,218.15 × 21,904.90
  4. Step 4: Simplify right side
    22,812.10x = 749,545,153.94
  5. Step 5: Solve for x
    x = 749,545,153.94/22,812.10
  6. Step 6: Final answer
    x = 32,857.35

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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.