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Finding the Fourth Proportional to 65,907.63, 90,963.27 and 49,023.99

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Solution

The fourth proportional to 65,907.63, 90,963.27 and 49,023.99 is: 67,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,907.63 : 90,963.27 = 49,023.99 : x
  2. Step 2: Convert to fraction form
    65,907.63/90,963.27 = 49,023.99/x
  3. Step 3: Cross multiply
    65,907.63x = 90,963.27 × 49,023.99
  4. Step 4: Simplify right side
    65,907.63x = 4,459,382,438.85
  5. Step 5: Solve for x
    x = 4,459,382,438.85/65,907.63
  6. Step 6: Final answer
    x = 67,661.10

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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.