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Finding the Fourth Proportional to 13,296.70, 19,935.45 and 7,455.10

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Solution

The fourth proportional to 13,296.70, 19,935.45 and 7,455.10 is: 11,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.70 : 19,935.45 = 7,455.10 : x
  2. Step 2: Convert to fraction form
    13,296.70/19,935.45 = 7,455.10/x
  3. Step 3: Cross multiply
    13,296.70x = 19,935.45 × 7,455.10
  4. Step 4: Simplify right side
    13,296.70x = 148,620,773.30
  5. Step 5: Solve for x
    x = 148,620,773.30/13,296.70
  6. Step 6: Final answer
    x = 11,177.27

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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.