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Finding the Fourth Proportional to 8,488.12, 11,713.05 and 4,711.10

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Solution

The fourth proportional to 8,488.12, 11,713.05 and 4,711.10 is: 6,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.12 : 11,713.05 = 4,711.10 : x
  2. Step 2: Convert to fraction form
    8,488.12/11,713.05 = 4,711.10/x
  3. Step 3: Cross multiply
    8,488.12x = 11,713.05 × 4,711.10
  4. Step 4: Simplify right side
    8,488.12x = 55,181,385.03
  5. Step 5: Solve for x
    x = 55,181,385.03/8,488.12
  6. Step 6: Final answer
    x = 6,501.01

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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.