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Finding the Fourth Proportional to 60,937.65, 91,420.14 and 21,495.09

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Solution

The fourth proportional to 60,937.65, 91,420.14 and 21,495.09 is: 32,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,937.65 : 91,420.14 = 21,495.09 : x
  2. Step 2: Convert to fraction form
    60,937.65/91,420.14 = 21,495.09/x
  3. Step 3: Cross multiply
    60,937.65x = 91,420.14 × 21,495.09
  4. Step 4: Simplify right side
    60,937.65x = 1,965,084,137.11
  5. Step 5: Solve for x
    x = 1,965,084,137.11/60,937.65
  6. Step 6: Final answer
    x = 32,247.46

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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.