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Finding the Fourth Proportional to 8,963.56, 13,436.16 and 3,116.98

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Solution

The fourth proportional to 8,963.56, 13,436.16 and 3,116.98 is: 4,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.56 : 13,436.16 = 3,116.98 : x
  2. Step 2: Convert to fraction form
    8,963.56/13,436.16 = 3,116.98/x
  3. Step 3: Cross multiply
    8,963.56x = 13,436.16 × 3,116.98
  4. Step 4: Simplify right side
    8,963.56x = 41,880,242.00
  5. Step 5: Solve for x
    x = 41,880,242.00/8,963.56
  6. Step 6: Final answer
    x = 4,672.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.