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Finding the Fourth Proportional to 9,490.14, 13,075.08 and 6,616.20

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Solution

The fourth proportional to 9,490.14, 13,075.08 and 6,616.20 is: 9,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,490.14 : 13,075.08 = 6,616.20 : x
  2. Step 2: Convert to fraction form
    9,490.14/13,075.08 = 6,616.20/x
  3. Step 3: Cross multiply
    9,490.14x = 13,075.08 × 6,616.20
  4. Step 4: Simplify right side
    9,490.14x = 86,507,344.30
  5. Step 5: Solve for x
    x = 86,507,344.30/9,490.14
  6. Step 6: Final answer
    x = 9,115.50

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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.