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Finding the Fourth Proportional to 14,468.26, 21,703.02 and 7,078.94

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Solution

The fourth proportional to 14,468.26, 21,703.02 and 7,078.94 is: 10,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,468.26 : 21,703.02 = 7,078.94 : x
  2. Step 2: Convert to fraction form
    14,468.26/21,703.02 = 7,078.94/x
  3. Step 3: Cross multiply
    14,468.26x = 21,703.02 × 7,078.94
  4. Step 4: Simplify right side
    14,468.26x = 153,634,376.40
  5. Step 5: Solve for x
    x = 153,634,376.40/14,468.26
  6. Step 6: Final answer
    x = 10,618.72

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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.