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Finding the Fourth Proportional to 19,296.52, 26,629.98 and 10,913

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Solution

The fourth proportional to 19,296.52, 26,629.98 and 10,913 is: 15,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.52 : 26,629.98 = 10,913 : x
  2. Step 2: Convert to fraction form
    19,296.52/26,629.98 = 10,913/x
  3. Step 3: Cross multiply
    19,296.52x = 26,629.98 × 10,913
  4. Step 4: Simplify right side
    19,296.52x = 290,612,971.74
  5. Step 5: Solve for x
    x = 290,612,971.74/19,296.52
  6. Step 6: Final answer
    x = 15,060.38

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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.