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Finding the Fourth Proportional to 56,959.74, 78,604.13 and 31,467.86

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Solution

The fourth proportional to 56,959.74, 78,604.13 and 31,467.86 is: 43,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,959.74 : 78,604.13 = 31,467.86 : x
  2. Step 2: Convert to fraction form
    56,959.74/78,604.13 = 31,467.86/x
  3. Step 3: Cross multiply
    56,959.74x = 78,604.13 × 31,467.86
  4. Step 4: Simplify right side
    56,959.74x = 2,473,503,758.26
  5. Step 5: Solve for x
    x = 2,473,503,758.26/56,959.74
  6. Step 6: Final answer
    x = 43,425.47

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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.