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Finding the Fourth Proportional to 8,338.55, 11,507.10 and 4,561.79

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Solution

The fourth proportional to 8,338.55, 11,507.10 and 4,561.79 is: 6,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.55 : 11,507.10 = 4,561.79 : x
  2. Step 2: Convert to fraction form
    8,338.55/11,507.10 = 4,561.79/x
  3. Step 3: Cross multiply
    8,338.55x = 11,507.10 × 4,561.79
  4. Step 4: Simplify right side
    8,338.55x = 52,492,927.58
  5. Step 5: Solve for x
    x = 52,492,927.58/8,338.55
  6. Step 6: Final answer
    x = 6,295.21

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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.