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Finding the Fourth Proportional to 53,758.65, 80,638.11 and 16,319.01

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Solution

The fourth proportional to 53,758.65, 80,638.11 and 16,319.01 is: 24,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,758.65 : 80,638.11 = 16,319.01 : x
  2. Step 2: Convert to fraction form
    53,758.65/80,638.11 = 16,319.01/x
  3. Step 3: Cross multiply
    53,758.65x = 80,638.11 × 16,319.01
  4. Step 4: Simplify right side
    53,758.65x = 1,315,934,123.47
  5. Step 5: Solve for x
    x = 1,315,934,123.47/53,758.65
  6. Step 6: Final answer
    x = 24,478.56

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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.