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Finding the Fourth Proportional to 8,866.44, 12,210.48 and 8,839.71

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Solution

The fourth proportional to 8,866.44, 12,210.48 and 8,839.71 is: 12,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.44 : 12,210.48 = 8,839.71 : x
  2. Step 2: Convert to fraction form
    8,866.44/12,210.48 = 8,839.71/x
  3. Step 3: Cross multiply
    8,866.44x = 12,210.48 × 8,839.71
  4. Step 4: Simplify right side
    8,866.44x = 107,937,102.16
  5. Step 5: Solve for x
    x = 107,937,102.16/8,866.44
  6. Step 6: Final answer
    x = 12,173.67

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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.