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Finding the Fourth Proportional to 18,341.74, 27,508.16 and 8,471.52

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Solution

The fourth proportional to 18,341.74, 27,508.16 and 8,471.52 is: 12,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.74 : 27,508.16 = 8,471.52 : x
  2. Step 2: Convert to fraction form
    18,341.74/27,508.16 = 8,471.52/x
  3. Step 3: Cross multiply
    18,341.74x = 27,508.16 × 8,471.52
  4. Step 4: Simplify right side
    18,341.74x = 233,035,927.60
  5. Step 5: Solve for x
    x = 233,035,927.60/18,341.74
  6. Step 6: Final answer
    x = 12,705.22

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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.