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Finding the Fourth Proportional to 15,796.11, 21,803.46 and 9,748.20

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Solution

The fourth proportional to 15,796.11, 21,803.46 and 9,748.20 is: 13,455.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.11 : 21,803.46 = 9,748.20 : x
  2. Step 2: Convert to fraction form
    15,796.11/21,803.46 = 9,748.20/x
  3. Step 3: Cross multiply
    15,796.11x = 21,803.46 × 9,748.20
  4. Step 4: Simplify right side
    15,796.11x = 212,544,488.77
  5. Step 5: Solve for x
    x = 212,544,488.77/15,796.11
  6. Step 6: Final answer
    x = 13,455.50

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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.