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Finding the Fourth Proportional to 53,907.65, 80,861.49 and 16,465.70

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Solution

The fourth proportional to 53,907.65, 80,861.49 and 16,465.70 is: 24,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,907.65 : 80,861.49 = 16,465.70 : x
  2. Step 2: Convert to fraction form
    53,907.65/80,861.49 = 16,465.70/x
  3. Step 3: Cross multiply
    53,907.65x = 80,861.49 × 16,465.70
  4. Step 4: Simplify right side
    53,907.65x = 1,331,441,035.89
  5. Step 5: Solve for x
    x = 1,331,441,035.89/53,907.65
  6. Step 6: Final answer
    x = 24,698.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.