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Finding the Fourth Proportional to 2,285.63, 3,154.12 and 1,499.63

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Solution

The fourth proportional to 2,285.63, 3,154.12 and 1,499.63 is: 2,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.63 : 3,154.12 = 1,499.63 : x
  2. Step 2: Convert to fraction form
    2,285.63/3,154.12 = 1,499.63/x
  3. Step 3: Cross multiply
    2,285.63x = 3,154.12 × 1,499.63
  4. Step 4: Simplify right side
    2,285.63x = 4,729,993.46
  5. Step 5: Solve for x
    x = 4,729,993.46/2,285.63
  6. Step 6: Final answer
    x = 2,069.45

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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.