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Finding the Fourth Proportional to 2,063.95, 3,095.85 and 831.07

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Solution

The fourth proportional to 2,063.95, 3,095.85 and 831.07 is: 1,246.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,063.95 : 3,095.85 = 831.07 : x
  2. Step 2: Convert to fraction form
    2,063.95/3,095.85 = 831.07/x
  3. Step 3: Cross multiply
    2,063.95x = 3,095.85 × 831.07
  4. Step 4: Simplify right side
    2,063.95x = 2,572,868.06
  5. Step 5: Solve for x
    x = 2,572,868.06/2,063.95
  6. Step 6: Final answer
    x = 1,246.57

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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.