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Finding the Fourth Proportional to 15,988.56, 22,063.92 and 9,274.08

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Solution

The fourth proportional to 15,988.56, 22,063.92 and 9,274.08 is: 12,798.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.56 : 22,063.92 = 9,274.08 : x
  2. Step 2: Convert to fraction form
    15,988.56/22,063.92 = 9,274.08/x
  3. Step 3: Cross multiply
    15,988.56x = 22,063.92 × 9,274.08
  4. Step 4: Simplify right side
    15,988.56x = 204,622,559.19
  5. Step 5: Solve for x
    x = 204,622,559.19/15,988.56
  6. Step 6: Final answer
    x = 12,798.06

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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.