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Finding the Fourth Proportional to 6,920.54, 9,543.90 and 4,558.58

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Solution

The fourth proportional to 6,920.54, 9,543.90 and 4,558.58 is: 6,286.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.54 : 9,543.90 = 4,558.58 : x
  2. Step 2: Convert to fraction form
    6,920.54/9,543.90 = 4,558.58/x
  3. Step 3: Cross multiply
    6,920.54x = 9,543.90 × 4,558.58
  4. Step 4: Simplify right side
    6,920.54x = 43,506,631.66
  5. Step 5: Solve for x
    x = 43,506,631.66/6,920.54
  6. Step 6: Final answer
    x = 6,286.59

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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.