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Finding the Fourth Proportional to 15,225.40, 22,859.70 and 9,393.40

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Solution

The fourth proportional to 15,225.40, 22,859.70 and 9,393.40 is: 14,103.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.40 : 22,859.70 = 9,393.40 : x
  2. Step 2: Convert to fraction form
    15,225.40/22,859.70 = 9,393.40/x
  3. Step 3: Cross multiply
    15,225.40x = 22,859.70 × 9,393.40
  4. Step 4: Simplify right side
    15,225.40x = 214,730,305.98
  5. Step 5: Solve for x
    x = 214,730,305.98/15,225.40
  6. Step 6: Final answer
    x = 14,103.43

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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.