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Finding the Fourth Proportional to 14,394.60, 19,864.08 and 8,805.60

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Solution

The fourth proportional to 14,394.60, 19,864.08 and 8,805.60 is: 12,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,394.60 : 19,864.08 = 8,805.60 : x
  2. Step 2: Convert to fraction form
    14,394.60/19,864.08 = 8,805.60/x
  3. Step 3: Cross multiply
    14,394.60x = 19,864.08 × 8,805.60
  4. Step 4: Simplify right side
    14,394.60x = 174,915,142.85
  5. Step 5: Solve for x
    x = 174,915,142.85/14,394.60
  6. Step 6: Final answer
    x = 12,151.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.