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Finding the Fourth Proportional to 64,696.32, 89,280.24 and 36,015.54

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Solution

The fourth proportional to 64,696.32, 89,280.24 and 36,015.54 is: 49,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,696.32 : 89,280.24 = 36,015.54 : x
  2. Step 2: Convert to fraction form
    64,696.32/89,280.24 = 36,015.54/x
  3. Step 3: Cross multiply
    64,696.32x = 89,280.24 × 36,015.54
  4. Step 4: Simplify right side
    64,696.32x = 3,215,476,054.93
  5. Step 5: Solve for x
    x = 3,215,476,054.93/64,696.32
  6. Step 6: Final answer
    x = 49,701.07

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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.