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Finding the Fourth Proportional to 65,571.47, 90,502.94 and 41,693.48

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Solution

The fourth proportional to 65,571.47, 90,502.94 and 41,693.48 is: 57,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,571.47 : 90,502.94 = 41,693.48 : x
  2. Step 2: Convert to fraction form
    65,571.47/90,502.94 = 41,693.48/x
  3. Step 3: Cross multiply
    65,571.47x = 90,502.94 × 41,693.48
  4. Step 4: Simplify right side
    65,571.47x = 3,773,382,310.36
  5. Step 5: Solve for x
    x = 3,773,382,310.36/65,571.47
  6. Step 6: Final answer
    x = 57,546.10

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1.5x scale

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.