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Finding the Fourth Proportional to 14,842.71, 20,484.48 and 8,796.57

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Solution

The fourth proportional to 14,842.71, 20,484.48 and 8,796.57 is: 12,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,842.71 : 20,484.48 = 8,796.57 : x
  2. Step 2: Convert to fraction form
    14,842.71/20,484.48 = 8,796.57/x
  3. Step 3: Cross multiply
    14,842.71x = 20,484.48 × 8,796.57
  4. Step 4: Simplify right side
    14,842.71x = 180,193,162.23
  5. Step 5: Solve for x
    x = 180,193,162.23/14,842.71
  6. Step 6: Final answer
    x = 12,140.18

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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.