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Finding the Fourth Proportional to 22,110.10, 31,031.90 and 22,110.10

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Solution

The fourth proportional to 22,110.10, 31,031.90 and 22,110.10 is: 31,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.10 : 31,031.90 = 22,110.10 : x
  2. Step 2: Convert to fraction form
    22,110.10/31,031.90 = 22,110.10/x
  3. Step 3: Cross multiply
    22,110.10x = 31,031.90 × 22,110.10
  4. Step 4: Simplify right side
    22,110.10x = 686,118,412.19
  5. Step 5: Solve for x
    x = 686,118,412.19/22,110.10
  6. Step 6: Final answer
    x = 31,031.90

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1.5x scale

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.