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Finding the Fourth Proportional to 12,625.52, 18,925.52 and 5,219.76

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Solution

The fourth proportional to 12,625.52, 18,925.52 and 5,219.76 is: 7,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.52 : 18,925.52 = 5,219.76 : x
  2. Step 2: Convert to fraction form
    12,625.52/18,925.52 = 5,219.76/x
  3. Step 3: Cross multiply
    12,625.52x = 18,925.52 × 5,219.76
  4. Step 4: Simplify right side
    12,625.52x = 98,786,672.28
  5. Step 5: Solve for x
    x = 98,786,672.28/12,625.52
  6. Step 6: Final answer
    x = 7,824.36

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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.