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Finding the Fourth Proportional to 66,254.76, 91,430.67 and 36,039.43

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Solution

The fourth proportional to 66,254.76, 91,430.67 and 36,039.43 is: 49,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.76 : 91,430.67 = 36,039.43 : x
  2. Step 2: Convert to fraction form
    66,254.76/91,430.67 = 36,039.43/x
  3. Step 3: Cross multiply
    66,254.76x = 91,430.67 × 36,039.43
  4. Step 4: Simplify right side
    66,254.76x = 3,295,109,231.32
  5. Step 5: Solve for x
    x = 3,295,109,231.32/66,254.76
  6. Step 6: Final answer
    x = 49,733.92

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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.