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Finding the Fourth Proportional to 31,706.85, 43,655.86 and 26,916.86

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Solution

The fourth proportional to 31,706.85, 43,655.86 and 26,916.86 is: 37,060.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.85 : 43,655.86 = 26,916.86 : x
  2. Step 2: Convert to fraction form
    31,706.85/43,655.86 = 26,916.86/x
  3. Step 3: Cross multiply
    31,706.85x = 43,655.86 × 26,916.86
  4. Step 4: Simplify right side
    31,706.85x = 1,175,078,739.09
  5. Step 5: Solve for x
    x = 1,175,078,739.09/31,706.85
  6. Step 6: Final answer
    x = 37,060.73

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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.