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Finding the Fourth Proportional to 8,967.11, 12,377.93 and 7,703.09

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Solution

The fourth proportional to 8,967.11, 12,377.93 and 7,703.09 is: 10,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.11 : 12,377.93 = 7,703.09 : x
  2. Step 2: Convert to fraction form
    8,967.11/12,377.93 = 7,703.09/x
  3. Step 3: Cross multiply
    8,967.11x = 12,377.93 × 7,703.09
  4. Step 4: Simplify right side
    8,967.11x = 95,348,208.40
  5. Step 5: Solve for x
    x = 95,348,208.40/8,967.11
  6. Step 6: Final answer
    x = 10,633.11

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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.