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Finding the Fourth Proportional to 67,752.88, 93,489.64 and 37,530.72

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Solution

The fourth proportional to 67,752.88, 93,489.64 and 37,530.72 is: 51,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,752.88 : 93,489.64 = 37,530.72 : x
  2. Step 2: Convert to fraction form
    67,752.88/93,489.64 = 37,530.72/x
  3. Step 3: Cross multiply
    67,752.88x = 93,489.64 × 37,530.72
  4. Step 4: Simplify right side
    67,752.88x = 3,508,733,501.74
  5. Step 5: Solve for x
    x = 3,508,733,501.74/67,752.88
  6. Step 6: Final answer
    x = 51,787.22

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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.