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Finding the Fourth Proportional to 60,937.78, 91,400.91 and 19,377.46

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Solution

The fourth proportional to 60,937.78, 91,400.91 and 19,377.46 is: 29,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,937.78 : 91,400.91 = 19,377.46 : x
  2. Step 2: Convert to fraction form
    60,937.78/91,400.91 = 19,377.46/x
  3. Step 3: Cross multiply
    60,937.78x = 91,400.91 × 19,377.46
  4. Step 4: Simplify right side
    60,937.78x = 1,771,117,477.49
  5. Step 5: Solve for x
    x = 1,771,117,477.49/60,937.78
  6. Step 6: Final answer
    x = 29,064.36

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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.