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Finding the Fourth Proportional to 10,365.56, 15,556.08 and 5,977.16

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Solution

The fourth proportional to 10,365.56, 15,556.08 and 5,977.16 is: 8,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.56 : 15,556.08 = 5,977.16 : x
  2. Step 2: Convert to fraction form
    10,365.56/15,556.08 = 5,977.16/x
  3. Step 3: Cross multiply
    10,365.56x = 15,556.08 × 5,977.16
  4. Step 4: Simplify right side
    10,365.56x = 92,981,179.13
  5. Step 5: Solve for x
    x = 92,981,179.13/10,365.56
  6. Step 6: Final answer
    x = 8,970.20

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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.