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Finding the Fourth Proportional to 45,253.75, 67,889.73 and 15,670.93

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Solution

The fourth proportional to 45,253.75, 67,889.73 and 15,670.93 is: 23,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,253.75 : 67,889.73 = 15,670.93 : x
  2. Step 2: Convert to fraction form
    45,253.75/67,889.73 = 15,670.93/x
  3. Step 3: Cross multiply
    45,253.75x = 67,889.73 × 15,670.93
  4. Step 4: Simplify right side
    45,253.75x = 1,063,895,206.55
  5. Step 5: Solve for x
    x = 1,063,895,206.55/45,253.75
  6. Step 6: Final answer
    x = 23,509.55

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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.