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Finding the Fourth Proportional to 65,228.72, 90,014.01 and 36,549.56

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Solution

The fourth proportional to 65,228.72, 90,014.01 and 36,549.56 is: 50,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,228.72 : 90,014.01 = 36,549.56 : x
  2. Step 2: Convert to fraction form
    65,228.72/90,014.01 = 36,549.56/x
  3. Step 3: Cross multiply
    65,228.72x = 90,014.01 × 36,549.56
  4. Step 4: Simplify right side
    65,228.72x = 3,289,972,009.27
  5. Step 5: Solve for x
    x = 3,289,972,009.27/65,228.72
  6. Step 6: Final answer
    x = 50,437.48

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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.