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Finding the Fourth Proportional to 8,534.43, 11,775.06 and 5,554.65

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Solution

The fourth proportional to 8,534.43, 11,775.06 and 5,554.65 is: 7,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.43 : 11,775.06 = 5,554.65 : x
  2. Step 2: Convert to fraction form
    8,534.43/11,775.06 = 5,554.65/x
  3. Step 3: Cross multiply
    8,534.43x = 11,775.06 × 5,554.65
  4. Step 4: Simplify right side
    8,534.43x = 65,406,337.03
  5. Step 5: Solve for x
    x = 65,406,337.03/8,534.43
  6. Step 6: Final answer
    x = 7,663.82

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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.