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Finding the Fourth Proportional to 5,394.86, 7,443.12 and 4,398.42

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Solution

The fourth proportional to 5,394.86, 7,443.12 and 4,398.42 is: 6,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.86 : 7,443.12 = 4,398.42 : x
  2. Step 2: Convert to fraction form
    5,394.86/7,443.12 = 4,398.42/x
  3. Step 3: Cross multiply
    5,394.86x = 7,443.12 × 4,398.42
  4. Step 4: Simplify right side
    5,394.86x = 32,737,967.87
  5. Step 5: Solve for x
    x = 32,737,967.87/5,394.86
  6. Step 6: Final answer
    x = 6,068.36

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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.