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Finding the Fourth Proportional to 66,534.57, 91,833.12 and 43,877.65

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Solution

The fourth proportional to 66,534.57, 91,833.12 and 43,877.65 is: 60,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,534.57 : 91,833.12 = 43,877.65 : x
  2. Step 2: Convert to fraction form
    66,534.57/91,833.12 = 43,877.65/x
  3. Step 3: Cross multiply
    66,534.57x = 91,833.12 × 43,877.65
  4. Step 4: Simplify right side
    66,534.57x = 4,029,421,497.77
  5. Step 5: Solve for x
    x = 4,029,421,497.77/66,534.57
  6. Step 6: Final answer
    x = 60,561.32

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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.