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Finding the Fourth Proportional to 52,878.77, 72,974.75 and 29,006.45

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Solution

The fourth proportional to 52,878.77, 72,974.75 and 29,006.45 is: 40,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,878.77 : 72,974.75 = 29,006.45 : x
  2. Step 2: Convert to fraction form
    52,878.77/72,974.75 = 29,006.45/x
  3. Step 3: Cross multiply
    52,878.77x = 72,974.75 × 29,006.45
  4. Step 4: Simplify right side
    52,878.77x = 2,116,738,437.14
  5. Step 5: Solve for x
    x = 2,116,738,437.14/52,878.77
  6. Step 6: Final answer
    x = 40,030.02

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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.