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Finding the Fourth Proportional to 65,251.63, 90,045.74 and 38,025.98

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Solution

The fourth proportional to 65,251.63, 90,045.74 and 38,025.98 is: 52,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,251.63 : 90,045.74 = 38,025.98 : x
  2. Step 2: Convert to fraction form
    65,251.63/90,045.74 = 38,025.98/x
  3. Step 3: Cross multiply
    65,251.63x = 90,045.74 × 38,025.98
  4. Step 4: Simplify right side
    65,251.63x = 3,424,077,508.33
  5. Step 5: Solve for x
    x = 3,424,077,508.33/65,251.63
  6. Step 6: Final answer
    x = 52,474.97

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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.