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Finding the Fourth Proportional to 22,859.70, 34,278.21 and 7,275.30

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Solution

The fourth proportional to 22,859.70, 34,278.21 and 7,275.30 is: 10,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,859.70 : 34,278.21 = 7,275.30 : x
  2. Step 2: Convert to fraction form
    22,859.70/34,278.21 = 7,275.30/x
  3. Step 3: Cross multiply
    22,859.70x = 34,278.21 × 7,275.30
  4. Step 4: Simplify right side
    22,859.70x = 249,384,261.21
  5. Step 5: Solve for x
    x = 249,384,261.21/22,859.70
  6. Step 6: Final answer
    x = 10,909.34

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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.