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Finding the Fourth Proportional to 4,691.98, 7,037.99 and 1,405.10

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Solution

The fourth proportional to 4,691.98, 7,037.99 and 1,405.10 is: 2,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,691.98 : 7,037.99 = 1,405.10 : x
  2. Step 2: Convert to fraction form
    4,691.98/7,037.99 = 1,405.10/x
  3. Step 3: Cross multiply
    4,691.98x = 7,037.99 × 1,405.10
  4. Step 4: Simplify right side
    4,691.98x = 9,889,056.00
  5. Step 5: Solve for x
    x = 9,889,056.00/4,691.98
  6. Step 6: Final answer
    x = 2,107.65

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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.