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Finding the Fourth Proportional to 62,602.72, 93,907.50 and 15,856

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Solution

The fourth proportional to 62,602.72, 93,907.50 and 15,856 is: 23,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,602.72 : 93,907.50 = 15,856 : x
  2. Step 2: Convert to fraction form
    62,602.72/93,907.50 = 15,856/x
  3. Step 3: Cross multiply
    62,602.72x = 93,907.50 × 15,856
  4. Step 4: Simplify right side
    62,602.72x = 1,488,997,320
  5. Step 5: Solve for x
    x = 1,488,997,320/62,602.72
  6. Step 6: Final answer
    x = 23,784.87

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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.