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Finding the Fourth Proportional to 7,956.54, 10,985.09 and 5,442.84

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Solution

The fourth proportional to 7,956.54, 10,985.09 and 5,442.84 is: 7,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.54 : 10,985.09 = 5,442.84 : x
  2. Step 2: Convert to fraction form
    7,956.54/10,985.09 = 5,442.84/x
  3. Step 3: Cross multiply
    7,956.54x = 10,985.09 × 5,442.84
  4. Step 4: Simplify right side
    7,956.54x = 59,790,060.04
  5. Step 5: Solve for x
    x = 59,790,060.04/7,956.54
  6. Step 6: Final answer
    x = 7,514.58

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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.