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Finding the Fourth Proportional to 51,304.68, 70,803.61 and 28,643.64

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Solution

The fourth proportional to 51,304.68, 70,803.61 and 28,643.64 is: 39,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,304.68 : 70,803.61 = 28,643.64 : x
  2. Step 2: Convert to fraction form
    51,304.68/70,803.61 = 28,643.64/x
  3. Step 3: Cross multiply
    51,304.68x = 70,803.61 × 28,643.64
  4. Step 4: Simplify right side
    51,304.68x = 2,028,073,115.54
  5. Step 5: Solve for x
    x = 2,028,073,115.54/51,304.68
  6. Step 6: Final answer
    x = 39,529.98

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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.