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Finding the Fourth Proportional to 7,889.16, 10,886.92 and 4,352.72

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Solution

The fourth proportional to 7,889.16, 10,886.92 and 4,352.72 is: 6,006.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.16 : 10,886.92 = 4,352.72 : x
  2. Step 2: Convert to fraction form
    7,889.16/10,886.92 = 4,352.72/x
  3. Step 3: Cross multiply
    7,889.16x = 10,886.92 × 4,352.72
  4. Step 4: Simplify right side
    7,889.16x = 47,387,714.42
  5. Step 5: Solve for x
    x = 47,387,714.42/7,889.16
  6. Step 6: Final answer
    x = 6,006.69

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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.