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Finding the Fourth Proportional to 14,672.06, 20,246.88 and 7,957.56

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Solution

The fourth proportional to 14,672.06, 20,246.88 and 7,957.56 is: 10,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.06 : 20,246.88 = 7,957.56 : x
  2. Step 2: Convert to fraction form
    14,672.06/20,246.88 = 7,957.56/x
  3. Step 3: Cross multiply
    14,672.06x = 20,246.88 × 7,957.56
  4. Step 4: Simplify right side
    14,672.06x = 161,115,762.41
  5. Step 5: Solve for x
    x = 161,115,762.41/14,672.06
  6. Step 6: Final answer
    x = 10,981.13

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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.