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Finding the Fourth Proportional to 65,733.91, 90,712.80 and 37,442.23

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Solution

The fourth proportional to 65,733.91, 90,712.80 and 37,442.23 is: 51,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,733.91 : 90,712.80 = 37,442.23 : x
  2. Step 2: Convert to fraction form
    65,733.91/90,712.80 = 37,442.23/x
  3. Step 3: Cross multiply
    65,733.91x = 90,712.80 × 37,442.23
  4. Step 4: Simplify right side
    65,733.91x = 3,396,489,521.54
  5. Step 5: Solve for x
    x = 3,396,489,521.54/65,733.91
  6. Step 6: Final answer
    x = 51,670.28

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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.