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Finding the Fourth Proportional to 15,315.17, 22,958.17 and 4,919.63

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Solution

The fourth proportional to 15,315.17, 22,958.17 and 4,919.63 is: 7,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.17 : 22,958.17 = 4,919.63 : x
  2. Step 2: Convert to fraction form
    15,315.17/22,958.17 = 4,919.63/x
  3. Step 3: Cross multiply
    15,315.17x = 22,958.17 × 4,919.63
  4. Step 4: Simplify right side
    15,315.17x = 112,945,701.88
  5. Step 5: Solve for x
    x = 112,945,701.88/15,315.17
  6. Step 6: Final answer
    x = 7,374.76

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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.