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Finding the Fourth Proportional to 15,908.16, 23,910.12 and 13,152.48

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Solution

The fourth proportional to 15,908.16, 23,910.12 and 13,152.48 is: 19,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.16 : 23,910.12 = 13,152.48 : x
  2. Step 2: Convert to fraction form
    15,908.16/23,910.12 = 13,152.48/x
  3. Step 3: Cross multiply
    15,908.16x = 23,910.12 × 13,152.48
  4. Step 4: Simplify right side
    15,908.16x = 314,477,375.10
  5. Step 5: Solve for x
    x = 314,477,375.10/15,908.16
  6. Step 6: Final answer
    x = 19,768.31

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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.