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Finding the Fourth Proportional to 61,901.70, 92,786.28 and 28,582.98

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Solution

The fourth proportional to 61,901.70, 92,786.28 and 28,582.98 is: 42,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.70 : 92,786.28 = 28,582.98 : x
  2. Step 2: Convert to fraction form
    61,901.70/92,786.28 = 28,582.98/x
  3. Step 3: Cross multiply
    61,901.70x = 92,786.28 × 28,582.98
  4. Step 4: Simplify right side
    61,901.70x = 2,652,108,385.51
  5. Step 5: Solve for x
    x = 2,652,108,385.51/61,901.70
  6. Step 6: Final answer
    x = 42,843.87

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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.