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Finding the Fourth Proportional to 19,574.72, 29,363.04 and 7,886.36

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Solution

The fourth proportional to 19,574.72, 29,363.04 and 7,886.36 is: 11,829.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574.72 : 29,363.04 = 7,886.36 : x
  2. Step 2: Convert to fraction form
    19,574.72/29,363.04 = 7,886.36/x
  3. Step 3: Cross multiply
    19,574.72x = 29,363.04 × 7,886.36
  4. Step 4: Simplify right side
    19,574.72x = 231,567,504.13
  5. Step 5: Solve for x
    x = 231,567,504.13/19,574.72
  6. Step 6: Final answer
    x = 11,829.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.