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Finding the Fourth Proportional to 8,756.11, 11,986.74 and 8,693.58

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Solution

The fourth proportional to 8,756.11, 11,986.74 and 8,693.58 is: 11,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.11 : 11,986.74 = 8,693.58 : x
  2. Step 2: Convert to fraction form
    8,756.11/11,986.74 = 8,693.58/x
  3. Step 3: Cross multiply
    8,756.11x = 11,986.74 × 8,693.58
  4. Step 4: Simplify right side
    8,756.11x = 104,207,683.13
  5. Step 5: Solve for x
    x = 104,207,683.13/8,756.11
  6. Step 6: Final answer
    x = 11,901.14

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.