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Finding the Fourth Proportional to 66,000.73, 91,085.84 and 37,705.81

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Solution

The fourth proportional to 66,000.73, 91,085.84 and 37,705.81 is: 52,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,000.73 : 91,085.84 = 37,705.81 : x
  2. Step 2: Convert to fraction form
    66,000.73/91,085.84 = 37,705.81/x
  3. Step 3: Cross multiply
    66,000.73x = 91,085.84 × 37,705.81
  4. Step 4: Simplify right side
    66,000.73x = 3,434,465,376.73
  5. Step 5: Solve for x
    x = 3,434,465,376.73/66,000.73
  6. Step 6: Final answer
    x = 52,036.78

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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.