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Finding the Fourth Proportional to 8,558.75, 11,807.31 and 5,020.37

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Solution

The fourth proportional to 8,558.75, 11,807.31 and 5,020.37 is: 6,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.75 : 11,807.31 = 5,020.37 : x
  2. Step 2: Convert to fraction form
    8,558.75/11,807.31 = 5,020.37/x
  3. Step 3: Cross multiply
    8,558.75x = 11,807.31 × 5,020.37
  4. Step 4: Simplify right side
    8,558.75x = 59,277,005.87
  5. Step 5: Solve for x
    x = 59,277,005.87/8,558.75
  6. Step 6: Final answer
    x = 6,925.90

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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.