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Finding the Fourth Proportional to 65,503.56, 90,392.31 and 37,206.12

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Solution

The fourth proportional to 65,503.56, 90,392.31 and 37,206.12 is: 51,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,503.56 : 90,392.31 = 37,206.12 : x
  2. Step 2: Convert to fraction form
    65,503.56/90,392.31 = 37,206.12/x
  3. Step 3: Cross multiply
    65,503.56x = 90,392.31 × 37,206.12
  4. Step 4: Simplify right side
    65,503.56x = 3,363,147,132.94
  5. Step 5: Solve for x
    x = 3,363,147,132.94/65,503.56
  6. Step 6: Final answer
    x = 51,342.97

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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.