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Finding the Fourth Proportional to 65,608.61, 90,539.66 and 36,928.25

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Solution

The fourth proportional to 65,608.61, 90,539.66 and 36,928.25 is: 50,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.61 : 90,539.66 = 36,928.25 : x
  2. Step 2: Convert to fraction form
    65,608.61/90,539.66 = 36,928.25/x
  3. Step 3: Cross multiply
    65,608.61x = 90,539.66 × 36,928.25
  4. Step 4: Simplify right side
    65,608.61x = 3,343,471,127.93
  5. Step 5: Solve for x
    x = 3,343,471,127.93/65,608.61
  6. Step 6: Final answer
    x = 50,960.86

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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.