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Finding the Fourth Proportional to 22,813.40, 34,245.70 and 17,642.20

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Solution

The fourth proportional to 22,813.40, 34,245.70 and 17,642.20 is: 26,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.40 : 34,245.70 = 17,642.20 : x
  2. Step 2: Convert to fraction form
    22,813.40/34,245.70 = 17,642.20/x
  3. Step 3: Cross multiply
    22,813.40x = 34,245.70 × 17,642.20
  4. Step 4: Simplify right side
    22,813.40x = 604,169,488.54
  5. Step 5: Solve for x
    x = 604,169,488.54/22,813.40
  6. Step 6: Final answer
    x = 26,483.10

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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.