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Finding the Fourth Proportional to 66,569.40, 91,857.51 and 37,892.77

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Solution

The fourth proportional to 66,569.40, 91,857.51 and 37,892.77 is: 52,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,569.40 : 91,857.51 = 37,892.77 : x
  2. Step 2: Convert to fraction form
    66,569.40/91,857.51 = 37,892.77/x
  3. Step 3: Cross multiply
    66,569.40x = 91,857.51 × 37,892.77
  4. Step 4: Simplify right side
    66,569.40x = 3,480,735,269.56
  5. Step 5: Solve for x
    x = 3,480,735,269.56/66,569.40
  6. Step 6: Final answer
    x = 52,287.32

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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.