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Finding the Fourth Proportional to 10,625.68, 14,663.94 and 5,909.92

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Solution

The fourth proportional to 10,625.68, 14,663.94 and 5,909.92 is: 8,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625.68 : 14,663.94 = 5,909.92 : x
  2. Step 2: Convert to fraction form
    10,625.68/14,663.94 = 5,909.92/x
  3. Step 3: Cross multiply
    10,625.68x = 14,663.94 × 5,909.92
  4. Step 4: Simplify right side
    10,625.68x = 86,662,712.28
  5. Step 5: Solve for x
    x = 86,662,712.28/10,625.68
  6. Step 6: Final answer
    x = 8,155.97

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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.