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Finding the Fourth Proportional to 14,995.95, 20,694.57 and 8,281.46

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Solution

The fourth proportional to 14,995.95, 20,694.57 and 8,281.46 is: 11,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.95 : 20,694.57 = 8,281.46 : x
  2. Step 2: Convert to fraction form
    14,995.95/20,694.57 = 8,281.46/x
  3. Step 3: Cross multiply
    14,995.95x = 20,694.57 × 8,281.46
  4. Step 4: Simplify right side
    14,995.95x = 171,381,150.20
  5. Step 5: Solve for x
    x = 171,381,150.20/14,995.95
  6. Step 6: Final answer
    x = 11,428.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.