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Finding the Fourth Proportional to 18,480.79, 25,501.52 and 10,927.40

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Solution

The fourth proportional to 18,480.79, 25,501.52 and 10,927.40 is: 15,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.79 : 25,501.52 = 10,927.40 : x
  2. Step 2: Convert to fraction form
    18,480.79/25,501.52 = 10,927.40/x
  3. Step 3: Cross multiply
    18,480.79x = 25,501.52 × 10,927.40
  4. Step 4: Simplify right side
    18,480.79x = 278,665,255.01
  5. Step 5: Solve for x
    x = 278,665,255.01/18,480.79
  6. Step 6: Final answer
    x = 15,078.65

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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.