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Finding the Fourth Proportional to 51,937.75, 71,674.11 and 28,064.42

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Solution

The fourth proportional to 51,937.75, 71,674.11 and 28,064.42 is: 38,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,937.75 : 71,674.11 = 28,064.42 : x
  2. Step 2: Convert to fraction form
    51,937.75/71,674.11 = 28,064.42/x
  3. Step 3: Cross multiply
    51,937.75x = 71,674.11 × 28,064.42
  4. Step 4: Simplify right side
    51,937.75x = 2,011,492,326.17
  5. Step 5: Solve for x
    x = 2,011,492,326.17/51,937.75
  6. Step 6: Final answer
    x = 38,728.91

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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.