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Finding the Fourth Proportional to 65,490.81, 98,142.36 and 37,352.63

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Solution

The fourth proportional to 65,490.81, 98,142.36 and 37,352.63 is: 55,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.81 : 98,142.36 = 37,352.63 : x
  2. Step 2: Convert to fraction form
    65,490.81/98,142.36 = 37,352.63/x
  3. Step 3: Cross multiply
    65,490.81x = 98,142.36 × 37,352.63
  4. Step 4: Simplify right side
    65,490.81x = 3,665,874,769.70
  5. Step 5: Solve for x
    x = 3,665,874,769.70/65,490.81
  6. Step 6: Final answer
    x = 55,975.41

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1.5x scale

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.