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Finding the Fourth Proportional to 7,831.06, 11,749.15 and 2,901.06

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Solution

The fourth proportional to 7,831.06, 11,749.15 and 2,901.06 is: 4,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.06 : 11,749.15 = 2,901.06 : x
  2. Step 2: Convert to fraction form
    7,831.06/11,749.15 = 2,901.06/x
  3. Step 3: Cross multiply
    7,831.06x = 11,749.15 × 2,901.06
  4. Step 4: Simplify right side
    7,831.06x = 34,084,989.10
  5. Step 5: Solve for x
    x = 34,084,989.10/7,831.06
  6. Step 6: Final answer
    x = 4,352.54

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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.