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Finding the Fourth Proportional to 64,681.92, 89,256.21 and 36,382.14

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Solution

The fourth proportional to 64,681.92, 89,256.21 and 36,382.14 is: 50,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.92 : 89,256.21 = 36,382.14 : x
  2. Step 2: Convert to fraction form
    64,681.92/89,256.21 = 36,382.14/x
  3. Step 3: Cross multiply
    64,681.92x = 89,256.21 × 36,382.14
  4. Step 4: Simplify right side
    64,681.92x = 3,247,331,928.09
  5. Step 5: Solve for x
    x = 3,247,331,928.09/64,681.92
  6. Step 6: Final answer
    x = 50,204.63

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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.