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Finding the Fourth Proportional to 66,132.98, 91,263.50 and 35,918.36

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Solution

The fourth proportional to 66,132.98, 91,263.50 and 35,918.36 is: 49,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.98 : 91,263.50 = 35,918.36 : x
  2. Step 2: Convert to fraction form
    66,132.98/91,263.50 = 35,918.36/x
  3. Step 3: Cross multiply
    66,132.98x = 91,263.50 × 35,918.36
  4. Step 4: Simplify right side
    66,132.98x = 3,278,035,247.86
  5. Step 5: Solve for x
    x = 3,278,035,247.86/66,132.98
  6. Step 6: Final answer
    x = 49,567.33

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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.