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Finding the Fourth Proportional to 64,678.95, 89,256.83 and 36,384.66

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Solution

The fourth proportional to 64,678.95, 89,256.83 and 36,384.66 is: 50,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,678.95 : 89,256.83 = 36,384.66 : x
  2. Step 2: Convert to fraction form
    64,678.95/89,256.83 = 36,384.66/x
  3. Step 3: Cross multiply
    64,678.95x = 89,256.83 × 36,384.66
  4. Step 4: Simplify right side
    64,678.95x = 3,247,579,230.30
  5. Step 5: Solve for x
    x = 3,247,579,230.30/64,678.95
  6. Step 6: Final answer
    x = 50,210.76

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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.