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Finding the Fourth Proportional to 2,690.95, 3,713.51 and 1,495.90

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Solution

The fourth proportional to 2,690.95, 3,713.51 and 1,495.90 is: 2,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.95 : 3,713.51 = 1,495.90 : x
  2. Step 2: Convert to fraction form
    2,690.95/3,713.51 = 1,495.90/x
  3. Step 3: Cross multiply
    2,690.95x = 3,713.51 × 1,495.90
  4. Step 4: Simplify right side
    2,690.95x = 5,555,050.33
  5. Step 5: Solve for x
    x = 5,555,050.33/2,690.95
  6. Step 6: Final answer
    x = 2,064.34

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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.