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Finding the Fourth Proportional to 6,257.44, 8,623.44 and 5,415.52

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Solution

The fourth proportional to 6,257.44, 8,623.44 and 5,415.52 is: 7,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.44 : 8,623.44 = 5,415.52 : x
  2. Step 2: Convert to fraction form
    6,257.44/8,623.44 = 5,415.52/x
  3. Step 3: Cross multiply
    6,257.44x = 8,623.44 × 5,415.52
  4. Step 4: Simplify right side
    6,257.44x = 46,700,411.79
  5. Step 5: Solve for x
    x = 46,700,411.79/6,257.44
  6. Step 6: Final answer
    x = 7,463.18

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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.