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Finding the Fourth Proportional to 10,652.24, 15,978.37 and 10,636.85

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Solution

The fourth proportional to 10,652.24, 15,978.37 and 10,636.85 is: 15,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652.24 : 15,978.37 = 10,636.85 : x
  2. Step 2: Convert to fraction form
    10,652.24/15,978.37 = 10,636.85/x
  3. Step 3: Cross multiply
    10,652.24x = 15,978.37 × 10,636.85
  4. Step 4: Simplify right side
    10,652.24x = 169,959,524.93
  5. Step 5: Solve for x
    x = 169,959,524.93/10,652.24
  6. Step 6: Final answer
    x = 15,955.28

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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.