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Finding the Fourth Proportional to 56,625.05, 78,146.90 and 33,964.90

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Solution

The fourth proportional to 56,625.05, 78,146.90 and 33,964.90 is: 46,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,625.05 : 78,146.90 = 33,964.90 : x
  2. Step 2: Convert to fraction form
    56,625.05/78,146.90 = 33,964.90/x
  3. Step 3: Cross multiply
    56,625.05x = 78,146.90 × 33,964.90
  4. Step 4: Simplify right side
    56,625.05x = 2,654,251,643.81
  5. Step 5: Solve for x
    x = 2,654,251,643.81/56,625.05
  6. Step 6: Final answer
    x = 46,874.16

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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.