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Finding the Fourth Proportional to 14,468.60, 21,702.88 and 4,607.88

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Solution

The fourth proportional to 14,468.60, 21,702.88 and 4,607.88 is: 6,911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,468.60 : 21,702.88 = 4,607.88 : x
  2. Step 2: Convert to fraction form
    14,468.60/21,702.88 = 4,607.88/x
  3. Step 3: Cross multiply
    14,468.60x = 21,702.88 × 4,607.88
  4. Step 4: Simplify right side
    14,468.60x = 100,004,266.69
  5. Step 5: Solve for x
    x = 100,004,266.69/14,468.60
  6. Step 6: Final answer
    x = 6,911.81

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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.