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Finding the Fourth Proportional to 15,722.10, 22,040.10 and 15,722.10

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Solution

The fourth proportional to 15,722.10, 22,040.10 and 15,722.10 is: 22,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.10 : 22,040.10 = 15,722.10 : x
  2. Step 2: Convert to fraction form
    15,722.10/22,040.10 = 15,722.10/x
  3. Step 3: Cross multiply
    15,722.10x = 22,040.10 × 15,722.10
  4. Step 4: Simplify right side
    15,722.10x = 346,516,656.21
  5. Step 5: Solve for x
    x = 346,516,656.21/15,722.10
  6. Step 6: Final answer
    x = 22,040.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.