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Finding the Fourth Proportional to 7,090.10, 10,641.29 and 7,073.70

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Solution

The fourth proportional to 7,090.10, 10,641.29 and 7,073.70 is: 10,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.10 : 10,641.29 = 7,073.70 : x
  2. Step 2: Convert to fraction form
    7,090.10/10,641.29 = 7,073.70/x
  3. Step 3: Cross multiply
    7,090.10x = 10,641.29 × 7,073.70
  4. Step 4: Simplify right side
    7,090.10x = 75,273,284.12
  5. Step 5: Solve for x
    x = 75,273,284.12/7,090.10
  6. Step 6: Final answer
    x = 10,616.68

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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.