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Finding the Fourth Proportional to 2,295.95, 3,170.21 and 1,499.81

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Solution

The fourth proportional to 2,295.95, 3,170.21 and 1,499.81 is: 2,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.95 : 3,170.21 = 1,499.81 : x
  2. Step 2: Convert to fraction form
    2,295.95/3,170.21 = 1,499.81/x
  3. Step 3: Cross multiply
    2,295.95x = 3,170.21 × 1,499.81
  4. Step 4: Simplify right side
    2,295.95x = 4,754,689.31
  5. Step 5: Solve for x
    x = 4,754,689.31/2,295.95
  6. Step 6: Final answer
    x = 2,070.91

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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.