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Finding the Fourth Proportional to 8,963.29, 12,370.93 and 5,608.98

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Solution

The fourth proportional to 8,963.29, 12,370.93 and 5,608.98 is: 7,741.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.29 : 12,370.93 = 5,608.98 : x
  2. Step 2: Convert to fraction form
    8,963.29/12,370.93 = 5,608.98/x
  3. Step 3: Cross multiply
    8,963.29x = 12,370.93 × 5,608.98
  4. Step 4: Simplify right side
    8,963.29x = 69,388,284.93
  5. Step 5: Solve for x
    x = 69,388,284.93/8,963.29
  6. Step 6: Final answer
    x = 7,741.38

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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.