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Finding the Fourth Proportional to 7,655.26, 10,561.44 and 4,821.88

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Solution

The fourth proportional to 7,655.26, 10,561.44 and 4,821.88 is: 6,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.26 : 10,561.44 = 4,821.88 : x
  2. Step 2: Convert to fraction form
    7,655.26/10,561.44 = 4,821.88/x
  3. Step 3: Cross multiply
    7,655.26x = 10,561.44 × 4,821.88
  4. Step 4: Simplify right side
    7,655.26x = 50,925,996.31
  5. Step 5: Solve for x
    x = 50,925,996.31/7,655.26
  6. Step 6: Final answer
    x = 6,652.42

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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.