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Finding the Fourth Proportional to 64,718.63, 89,296.93 and 36,413.99

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Solution

The fourth proportional to 64,718.63, 89,296.93 and 36,413.99 is: 50,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,718.63 : 89,296.93 = 36,413.99 : x
  2. Step 2: Convert to fraction form
    64,718.63/89,296.93 = 36,413.99/x
  3. Step 3: Cross multiply
    64,718.63x = 89,296.93 × 36,413.99
  4. Step 4: Simplify right side
    64,718.63x = 3,251,657,516.05
  5. Step 5: Solve for x
    x = 3,251,657,516.05/64,718.63
  6. Step 6: Final answer
    x = 50,242.99

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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.