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Finding the Fourth Proportional to 56,906.55, 85,359.83 and 55,266.30

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Solution

The fourth proportional to 56,906.55, 85,359.83 and 55,266.30 is: 82,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,906.55 : 85,359.83 = 55,266.30 : x
  2. Step 2: Convert to fraction form
    56,906.55/85,359.83 = 55,266.30/x
  3. Step 3: Cross multiply
    56,906.55x = 85,359.83 × 55,266.30
  4. Step 4: Simplify right side
    56,906.55x = 4,717,521,696.40
  5. Step 5: Solve for x
    x = 4,717,521,696.40/56,906.55
  6. Step 6: Final answer
    x = 82,899.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.