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Finding the Fourth Proportional to 51,489.81, 70,999.74 and 44,715.65

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Solution

The fourth proportional to 51,489.81, 70,999.74 and 44,715.65 is: 61,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.81 : 70,999.74 = 44,715.65 : x
  2. Step 2: Convert to fraction form
    51,489.81/70,999.74 = 44,715.65/x
  3. Step 3: Cross multiply
    51,489.81x = 70,999.74 × 44,715.65
  4. Step 4: Simplify right side
    51,489.81x = 3,174,799,168.93
  5. Step 5: Solve for x
    x = 3,174,799,168.93/51,489.81
  6. Step 6: Final answer
    x = 61,658.79

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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.