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Finding the Fourth Proportional to 14,506.64, 21,759.60 and 4,645.88

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Solution

The fourth proportional to 14,506.64, 21,759.60 and 4,645.88 is: 6,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.64 : 21,759.60 = 4,645.88 : x
  2. Step 2: Convert to fraction form
    14,506.64/21,759.60 = 4,645.88/x
  3. Step 3: Cross multiply
    14,506.64x = 21,759.60 × 4,645.88
  4. Step 4: Simplify right side
    14,506.64x = 101,092,490.45
  5. Step 5: Solve for x
    x = 101,092,490.45/14,506.64
  6. Step 6: Final answer
    x = 6,968.70

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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.