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Finding the Fourth Proportional to 15,291.36, 22,943.52 and 8,357.76

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Solution

The fourth proportional to 15,291.36, 22,943.52 and 8,357.76 is: 12,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.36 : 22,943.52 = 8,357.76 : x
  2. Step 2: Convert to fraction form
    15,291.36/22,943.52 = 8,357.76/x
  3. Step 3: Cross multiply
    15,291.36x = 22,943.52 × 8,357.76
  4. Step 4: Simplify right side
    15,291.36x = 191,756,433.72
  5. Step 5: Solve for x
    x = 191,756,433.72/15,291.36
  6. Step 6: Final answer
    x = 12,540.18

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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.