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Finding the Fourth Proportional to 6,558.51, 9,787.40 and 5,857.86

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Solution

The fourth proportional to 6,558.51, 9,787.40 and 5,857.86 is: 8,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.51 : 9,787.40 = 5,857.86 : x
  2. Step 2: Convert to fraction form
    6,558.51/9,787.40 = 5,857.86/x
  3. Step 3: Cross multiply
    6,558.51x = 9,787.40 × 5,857.86
  4. Step 4: Simplify right side
    6,558.51x = 57,333,218.96
  5. Step 5: Solve for x
    x = 57,333,218.96/6,558.51
  6. Step 6: Final answer
    x = 8,741.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.