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Finding the Fourth Proportional to 56,807.70, 85,114.35 and 36,006.90

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Solution

The fourth proportional to 56,807.70, 85,114.35 and 36,006.90 is: 53,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,807.70 : 85,114.35 = 36,006.90 : x
  2. Step 2: Convert to fraction form
    56,807.70/85,114.35 = 36,006.90/x
  3. Step 3: Cross multiply
    56,807.70x = 85,114.35 × 36,006.90
  4. Step 4: Simplify right side
    56,807.70x = 3,064,703,889.02
  5. Step 5: Solve for x
    x = 3,064,703,889.02/56,807.70
  6. Step 6: Final answer
    x = 53,948.74

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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.