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Finding the Fourth Proportional to 7,080.90, 10,605.90 and 6,462.06

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Solution

The fourth proportional to 7,080.90, 10,605.90 and 6,462.06 is: 9,678.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.90 : 10,605.90 = 6,462.06 : x
  2. Step 2: Convert to fraction form
    7,080.90/10,605.90 = 6,462.06/x
  3. Step 3: Cross multiply
    7,080.90x = 10,605.90 × 6,462.06
  4. Step 4: Simplify right side
    7,080.90x = 68,535,962.15
  5. Step 5: Solve for x
    x = 68,535,962.15/7,080.90
  6. Step 6: Final answer
    x = 9,678.99

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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.