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Finding the Fourth Proportional to 65,943.09, 91,001.48 and 35,728.62

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Solution

The fourth proportional to 65,943.09, 91,001.48 and 35,728.62 is: 49,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,943.09 : 91,001.48 = 35,728.62 : x
  2. Step 2: Convert to fraction form
    65,943.09/91,001.48 = 35,728.62/x
  3. Step 3: Cross multiply
    65,943.09x = 91,001.48 × 35,728.62
  4. Step 4: Simplify right side
    65,943.09x = 3,251,357,119.71
  5. Step 5: Solve for x
    x = 3,251,357,119.71/65,943.09
  6. Step 6: Final answer
    x = 49,305.50

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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.