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Finding the Fourth Proportional to 69,970.32, 96,561.32 and 39,753.85

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Solution

The fourth proportional to 69,970.32, 96,561.32 and 39,753.85 is: 54,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,970.32 : 96,561.32 = 39,753.85 : x
  2. Step 2: Convert to fraction form
    69,970.32/96,561.32 = 39,753.85/x
  3. Step 3: Cross multiply
    69,970.32x = 96,561.32 × 39,753.85
  4. Step 4: Simplify right side
    69,970.32x = 3,838,684,089.06
  5. Step 5: Solve for x
    x = 3,838,684,089.06/69,970.32
  6. Step 6: Final answer
    x = 54,861.61

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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.