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Finding the Fourth Proportional to 14,490.08, 19,996.24 and 7,866.08

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Solution

The fourth proportional to 14,490.08, 19,996.24 and 7,866.08 is: 10,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.08 : 19,996.24 = 7,866.08 : x
  2. Step 2: Convert to fraction form
    14,490.08/19,996.24 = 7,866.08/x
  3. Step 3: Cross multiply
    14,490.08x = 19,996.24 × 7,866.08
  4. Step 4: Simplify right side
    14,490.08x = 157,292,023.54
  5. Step 5: Solve for x
    x = 157,292,023.54/14,490.08
  6. Step 6: Final answer
    x = 10,855.15

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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.