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Finding the Fourth Proportional to 14,236.92, 19,646.86 and 7,863.93

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Solution

The fourth proportional to 14,236.92, 19,646.86 and 7,863.93 is: 10,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,236.92 : 19,646.86 = 7,863.93 : x
  2. Step 2: Convert to fraction form
    14,236.92/19,646.86 = 7,863.93/x
  3. Step 3: Cross multiply
    14,236.92x = 19,646.86 × 7,863.93
  4. Step 4: Simplify right side
    14,236.92x = 154,501,493.71
  5. Step 5: Solve for x
    x = 154,501,493.71/14,236.92
  6. Step 6: Final answer
    x = 10,852.17

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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.