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Finding the Fourth Proportional to 7,888.17, 10,885.54 and 4,351.71

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Solution

The fourth proportional to 7,888.17, 10,885.54 and 4,351.71 is: 6,005.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.17 : 10,885.54 = 4,351.71 : x
  2. Step 2: Convert to fraction form
    7,888.17/10,885.54 = 4,351.71/x
  3. Step 3: Cross multiply
    7,888.17x = 10,885.54 × 4,351.71
  4. Step 4: Simplify right side
    7,888.17x = 47,370,713.27
  5. Step 5: Solve for x
    x = 47,370,713.27/7,888.17
  6. Step 6: Final answer
    x = 6,005.29

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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.