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Finding the Fourth Proportional to 9,996.75, 13,795.52 and 5,580.75

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Solution

The fourth proportional to 9,996.75, 13,795.52 and 5,580.75 is: 7,701.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996.75 : 13,795.52 = 5,580.75 : x
  2. Step 2: Convert to fraction form
    9,996.75/13,795.52 = 5,580.75/x
  3. Step 3: Cross multiply
    9,996.75x = 13,795.52 × 5,580.75
  4. Step 4: Simplify right side
    9,996.75x = 76,989,320.34
  5. Step 5: Solve for x
    x = 76,989,320.34/9,996.75
  6. Step 6: Final answer
    x = 7,701.44

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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.