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Finding the Fourth Proportional to 15,656.86, 21,606.44 and 8,583.33

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Solution

The fourth proportional to 15,656.86, 21,606.44 and 8,583.33 is: 11,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656.86 : 21,606.44 = 8,583.33 : x
  2. Step 2: Convert to fraction form
    15,656.86/21,606.44 = 8,583.33/x
  3. Step 3: Cross multiply
    15,656.86x = 21,606.44 × 8,583.33
  4. Step 4: Simplify right side
    15,656.86x = 185,455,161.73
  5. Step 5: Solve for x
    x = 185,455,161.73/15,656.86
  6. Step 6: Final answer
    x = 11,844.98

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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.