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Finding the Fourth Proportional to 9,861.03, 13,602.60 and 5,881.86

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Solution

The fourth proportional to 9,861.03, 13,602.60 and 5,881.86 is: 8,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.03 : 13,602.60 = 5,881.86 : x
  2. Step 2: Convert to fraction form
    9,861.03/13,602.60 = 5,881.86/x
  3. Step 3: Cross multiply
    9,861.03x = 13,602.60 × 5,881.86
  4. Step 4: Simplify right side
    9,861.03x = 80,008,588.84
  5. Step 5: Solve for x
    x = 80,008,588.84/9,861.03
  6. Step 6: Final answer
    x = 8,113.61

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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.