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Finding the Fourth Proportional to 7,888.63, 10,886.38 and 4,351.97

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Solution

The fourth proportional to 7,888.63, 10,886.38 and 4,351.97 is: 6,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.63 : 10,886.38 = 4,351.97 : x
  2. Step 2: Convert to fraction form
    7,888.63/10,886.38 = 4,351.97/x
  3. Step 3: Cross multiply
    7,888.63x = 10,886.38 × 4,351.97
  4. Step 4: Simplify right side
    7,888.63x = 47,377,199.17
  5. Step 5: Solve for x
    x = 47,377,199.17/7,888.63
  6. Step 6: Final answer
    x = 6,005.76

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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.