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Finding the Fourth Proportional to 66,704.40, 92,053.44 and 39,862.32

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Solution

The fourth proportional to 66,704.40, 92,053.44 and 39,862.32 is: 55,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,704.40 : 92,053.44 = 39,862.32 : x
  2. Step 2: Convert to fraction form
    66,704.40/92,053.44 = 39,862.32/x
  3. Step 3: Cross multiply
    66,704.40x = 92,053.44 × 39,862.32
  4. Step 4: Simplify right side
    66,704.40x = 3,669,463,682.38
  5. Step 5: Solve for x
    x = 3,669,463,682.38/66,704.40
  6. Step 6: Final answer
    x = 55,010.82

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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.