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Finding the Fourth Proportional to 64,957.86, 89,643.30 and 36,663.78

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Solution

The fourth proportional to 64,957.86, 89,643.30 and 36,663.78 is: 50,596.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,957.86 : 89,643.30 = 36,663.78 : x
  2. Step 2: Convert to fraction form
    64,957.86/89,643.30 = 36,663.78/x
  3. Step 3: Cross multiply
    64,957.86x = 89,643.30 × 36,663.78
  4. Step 4: Simplify right side
    64,957.86x = 3,286,662,229.67
  5. Step 5: Solve for x
    x = 3,286,662,229.67/64,957.86
  6. Step 6: Final answer
    x = 50,596.84

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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.