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Finding the Fourth Proportional to 14,557.88, 20,089.88 and 8,270.25

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Solution

The fourth proportional to 14,557.88, 20,089.88 and 8,270.25 is: 11,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,557.88 : 20,089.88 = 8,270.25 : x
  2. Step 2: Convert to fraction form
    14,557.88/20,089.88 = 8,270.25/x
  3. Step 3: Cross multiply
    14,557.88x = 20,089.88 × 8,270.25
  4. Step 4: Simplify right side
    14,557.88x = 166,148,288.72
  5. Step 5: Solve for x
    x = 166,148,288.72/14,557.88
  6. Step 6: Final answer
    x = 11,412.95

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Double scale
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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.