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Finding the Fourth Proportional to 66,232.74, 91,401.79 and 36,018.35

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Solution

The fourth proportional to 66,232.74, 91,401.79 and 36,018.35 is: 49,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,232.74 : 91,401.79 = 36,018.35 : x
  2. Step 2: Convert to fraction form
    66,232.74/91,401.79 = 36,018.35/x
  3. Step 3: Cross multiply
    66,232.74x = 91,401.79 × 36,018.35
  4. Step 4: Simplify right side
    66,232.74x = 3,292,141,250.86
  5. Step 5: Solve for x
    x = 3,292,141,250.86/66,232.74
  6. Step 6: Final answer
    x = 49,705.65

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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.