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Finding the Fourth Proportional to 5,392.86, 7,440.36 and 4,396.42

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Solution

The fourth proportional to 5,392.86, 7,440.36 and 4,396.42 is: 6,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.86 : 7,440.36 = 4,396.42 : x
  2. Step 2: Convert to fraction form
    5,392.86/7,440.36 = 4,396.42/x
  3. Step 3: Cross multiply
    5,392.86x = 7,440.36 × 4,396.42
  4. Step 4: Simplify right side
    5,392.86x = 32,710,947.51
  5. Step 5: Solve for x
    x = 32,710,947.51/5,392.86
  6. Step 6: Final answer
    x = 6,065.60

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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.