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Finding the Fourth Proportional to 18,148.32, 25,047 and 11,073.24

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Solution

The fourth proportional to 18,148.32, 25,047 and 11,073.24 is: 15,282.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.32 : 25,047 = 11,073.24 : x
  2. Step 2: Convert to fraction form
    18,148.32/25,047 = 11,073.24/x
  3. Step 3: Cross multiply
    18,148.32x = 25,047 × 11,073.24
  4. Step 4: Simplify right side
    18,148.32x = 277,351,442.28
  5. Step 5: Solve for x
    x = 277,351,442.28/18,148.32
  6. Step 6: Final answer
    x = 15,282.49

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Double scale
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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.