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Finding the Fourth Proportional to 64,707.72, 89,296.44 and 36,413.46

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Solution

The fourth proportional to 64,707.72, 89,296.44 and 36,413.46 is: 50,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,707.72 : 89,296.44 = 36,413.46 : x
  2. Step 2: Convert to fraction form
    64,707.72/89,296.44 = 36,413.46/x
  3. Step 3: Cross multiply
    64,707.72x = 89,296.44 × 36,413.46
  4. Step 4: Simplify right side
    64,707.72x = 3,251,592,346.08
  5. Step 5: Solve for x
    x = 3,251,592,346.08/64,707.72
  6. Step 6: Final answer
    x = 50,250.45

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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.