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Finding the Fourth Proportional to 14,403.66, 21,603.66 and 5,644.72

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Solution

The fourth proportional to 14,403.66, 21,603.66 and 5,644.72 is: 8,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.66 : 21,603.66 = 5,644.72 : x
  2. Step 2: Convert to fraction form
    14,403.66/21,603.66 = 5,644.72/x
  3. Step 3: Cross multiply
    14,403.66x = 21,603.66 × 5,644.72
  4. Step 4: Simplify right side
    14,403.66x = 121,946,611.68
  5. Step 5: Solve for x
    x = 121,946,611.68/14,403.66
  6. Step 6: Final answer
    x = 8,466.36

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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.