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Finding the Fourth Proportional to 14,351.28, 19,804.38 and 8,064.06

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Solution

The fourth proportional to 14,351.28, 19,804.38 and 8,064.06 is: 11,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.28 : 19,804.38 = 8,064.06 : x
  2. Step 2: Convert to fraction form
    14,351.28/19,804.38 = 8,064.06/x
  3. Step 3: Cross multiply
    14,351.28x = 19,804.38 × 8,064.06
  4. Step 4: Simplify right side
    14,351.28x = 159,703,708.58
  5. Step 5: Solve for x
    x = 159,703,708.58/14,351.28
  6. Step 6: Final answer
    x = 11,128.19

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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.