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Finding the Fourth Proportional to 65,953.74, 91,029.90 and 60,640.14

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Solution

The fourth proportional to 65,953.74, 91,029.90 and 60,640.14 is: 83,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,953.74 : 91,029.90 = 60,640.14 : x
  2. Step 2: Convert to fraction form
    65,953.74/91,029.90 = 60,640.14/x
  3. Step 3: Cross multiply
    65,953.74x = 91,029.90 × 60,640.14
  4. Step 4: Simplify right side
    65,953.74x = 5,520,065,880.19
  5. Step 5: Solve for x
    x = 5,520,065,880.19/65,953.74
  6. Step 6: Final answer
    x = 83,696.03

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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.