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Finding the Fourth Proportional to 14,969.95, 20,657.91 and 8,837.62

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Solution

The fourth proportional to 14,969.95, 20,657.91 and 8,837.62 is: 12,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.95 : 20,657.91 = 8,837.62 : x
  2. Step 2: Convert to fraction form
    14,969.95/20,657.91 = 8,837.62/x
  3. Step 3: Cross multiply
    14,969.95x = 20,657.91 × 8,837.62
  4. Step 4: Simplify right side
    14,969.95x = 182,566,758.57
  5. Step 5: Solve for x
    x = 182,566,758.57/14,969.95
  6. Step 6: Final answer
    x = 12,195.55

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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.