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Finding the Fourth Proportional to 15,696.56, 23,548.08 and 5,309.12

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Solution

The fourth proportional to 15,696.56, 23,548.08 and 5,309.12 is: 7,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.56 : 23,548.08 = 5,309.12 : x
  2. Step 2: Convert to fraction form
    15,696.56/23,548.08 = 5,309.12/x
  3. Step 3: Cross multiply
    15,696.56x = 23,548.08 × 5,309.12
  4. Step 4: Simplify right side
    15,696.56x = 125,019,582.49
  5. Step 5: Solve for x
    x = 125,019,582.49/15,696.56
  6. Step 6: Final answer
    x = 7,964.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.