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Finding the Fourth Proportional to 11,188.92, 15,441.94 and 6,473

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Solution

The fourth proportional to 11,188.92, 15,441.94 and 6,473 is: 8,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.92 : 15,441.94 = 6,473 : x
  2. Step 2: Convert to fraction form
    11,188.92/15,441.94 = 6,473/x
  3. Step 3: Cross multiply
    11,188.92x = 15,441.94 × 6,473
  4. Step 4: Simplify right side
    11,188.92x = 99,955,677.62
  5. Step 5: Solve for x
    x = 99,955,677.62/11,188.92
  6. Step 6: Final answer
    x = 8,933.45

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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.