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Finding the Fourth Proportional to 11,875.79, 16,388.12 and 6,570.48

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Solution

The fourth proportional to 11,875.79, 16,388.12 and 6,570.48 is: 9,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.79 : 16,388.12 = 6,570.48 : x
  2. Step 2: Convert to fraction form
    11,875.79/16,388.12 = 6,570.48/x
  3. Step 3: Cross multiply
    11,875.79x = 16,388.12 × 6,570.48
  4. Step 4: Simplify right side
    11,875.79x = 107,677,781.85
  5. Step 5: Solve for x
    x = 107,677,781.85/11,875.79
  6. Step 6: Final answer
    x = 9,067.00

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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.