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Finding the Fourth Proportional to 66,530.17, 91,797.93 and 38,230.39

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Solution

The fourth proportional to 66,530.17, 91,797.93 and 38,230.39 is: 52,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,530.17 : 91,797.93 = 38,230.39 : x
  2. Step 2: Convert to fraction form
    66,530.17/91,797.93 = 38,230.39/x
  3. Step 3: Cross multiply
    66,530.17x = 91,797.93 × 38,230.39
  4. Step 4: Simplify right side
    66,530.17x = 3,509,470,665.09
  5. Step 5: Solve for x
    x = 3,509,470,665.09/66,530.17
  6. Step 6: Final answer
    x = 52,750.06

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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.