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Finding the Fourth Proportional to 8,831.35, 13,254.72 and 4,674.35

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Solution

The fourth proportional to 8,831.35, 13,254.72 and 4,674.35 is: 7,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.35 : 13,254.72 = 4,674.35 : x
  2. Step 2: Convert to fraction form
    8,831.35/13,254.72 = 4,674.35/x
  3. Step 3: Cross multiply
    8,831.35x = 13,254.72 × 4,674.35
  4. Step 4: Simplify right side
    8,831.35x = 61,957,200.43
  5. Step 5: Solve for x
    x = 61,957,200.43/8,831.35
  6. Step 6: Final answer
    x = 7,015.60

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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.