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Finding the Fourth Proportional to 66,510.41, 91,780.67 and 37,826.19

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Solution

The fourth proportional to 66,510.41, 91,780.67 and 37,826.19 is: 52,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.41 : 91,780.67 = 37,826.19 : x
  2. Step 2: Convert to fraction form
    66,510.41/91,780.67 = 37,826.19/x
  3. Step 3: Cross multiply
    66,510.41x = 91,780.67 × 37,826.19
  4. Step 4: Simplify right side
    66,510.41x = 3,471,713,156.31
  5. Step 5: Solve for x
    x = 3,471,713,156.31/66,510.41
  6. Step 6: Final answer
    x = 52,198.05

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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.