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Finding the Fourth Proportional to 9,860.76, 13,608.14 and 5,881.77

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Solution

The fourth proportional to 9,860.76, 13,608.14 and 5,881.77 is: 8,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.76 : 13,608.14 = 5,881.77 : x
  2. Step 2: Convert to fraction form
    9,860.76/13,608.14 = 5,881.77/x
  3. Step 3: Cross multiply
    9,860.76x = 13,608.14 × 5,881.77
  4. Step 4: Simplify right side
    9,860.76x = 80,039,920.20
  5. Step 5: Solve for x
    x = 80,039,920.20/9,860.76
  6. Step 6: Final answer
    x = 8,117.01

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Double scale
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Similar ratio
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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.