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Finding the Fourth Proportional to 65,887.09, 90,923.07 and 35,672.16

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Solution

The fourth proportional to 65,887.09, 90,923.07 and 35,672.16 is: 49,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,887.09 : 90,923.07 = 35,672.16 : x
  2. Step 2: Convert to fraction form
    65,887.09/90,923.07 = 35,672.16/x
  3. Step 3: Cross multiply
    65,887.09x = 90,923.07 × 35,672.16
  4. Step 4: Simplify right side
    65,887.09x = 3,243,422,775.46
  5. Step 5: Solve for x
    x = 3,243,422,775.46/65,887.09
  6. Step 6: Final answer
    x = 49,226.99

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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.