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Finding the Fourth Proportional to 8,710.14, 12,026.07 and 6,690.18

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Solution

The fourth proportional to 8,710.14, 12,026.07 and 6,690.18 is: 9,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.14 : 12,026.07 = 6,690.18 : x
  2. Step 2: Convert to fraction form
    8,710.14/12,026.07 = 6,690.18/x
  3. Step 3: Cross multiply
    8,710.14x = 12,026.07 × 6,690.18
  4. Step 4: Simplify right side
    8,710.14x = 80,456,572.99
  5. Step 5: Solve for x
    x = 80,456,572.99/8,710.14
  6. Step 6: Final answer
    x = 9,237.12

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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.