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Finding the Fourth Proportional to 11,502.54, 17,242.19 and 4,478.18

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Solution

The fourth proportional to 11,502.54, 17,242.19 and 4,478.18 is: 6,712.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,502.54 : 17,242.19 = 4,478.18 : x
  2. Step 2: Convert to fraction form
    11,502.54/17,242.19 = 4,478.18/x
  3. Step 3: Cross multiply
    11,502.54x = 17,242.19 × 4,478.18
  4. Step 4: Simplify right side
    11,502.54x = 77,213,521.81
  5. Step 5: Solve for x
    x = 77,213,521.81/11,502.54
  6. Step 6: Final answer
    x = 6,712.74

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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.