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Finding the Fourth Proportional to 14,855.88, 22,271.52 and 7,831.96

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Solution

The fourth proportional to 14,855.88, 22,271.52 and 7,831.96 is: 11,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.88 : 22,271.52 = 7,831.96 : x
  2. Step 2: Convert to fraction form
    14,855.88/22,271.52 = 7,831.96/x
  3. Step 3: Cross multiply
    14,855.88x = 22,271.52 × 7,831.96
  4. Step 4: Simplify right side
    14,855.88x = 174,429,653.78
  5. Step 5: Solve for x
    x = 174,429,653.78/14,855.88
  6. Step 6: Final answer
    x = 11,741.46

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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.