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Finding the Fourth Proportional to 19,508.40, 29,255.04 and 7,025.76

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Solution

The fourth proportional to 19,508.40, 29,255.04 and 7,025.76 is: 10,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.40 : 29,255.04 = 7,025.76 : x
  2. Step 2: Convert to fraction form
    19,508.40/29,255.04 = 7,025.76/x
  3. Step 3: Cross multiply
    19,508.40x = 29,255.04 × 7,025.76
  4. Step 4: Simplify right side
    19,508.40x = 205,538,889.83
  5. Step 5: Solve for x
    x = 205,538,889.83/19,508.40
  6. Step 6: Final answer
    x = 10,535.92

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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.