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Finding the Fourth Proportional to 66,652.93, 91,991.06 and 38,353.15

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Solution

The fourth proportional to 66,652.93, 91,991.06 and 38,353.15 is: 52,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,652.93 : 91,991.06 = 38,353.15 : x
  2. Step 2: Convert to fraction form
    66,652.93/91,991.06 = 38,353.15/x
  3. Step 3: Cross multiply
    66,652.93x = 91,991.06 × 38,353.15
  4. Step 4: Simplify right side
    66,652.93x = 3,528,146,922.84
  5. Step 5: Solve for x
    x = 3,528,146,922.84/66,652.93
  6. Step 6: Final answer
    x = 52,933.11

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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.