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Finding the Fourth Proportional to 12,753.17, 19,126.71 and 5,357.77

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Solution

The fourth proportional to 12,753.17, 19,126.71 and 5,357.77 is: 8,035.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753.17 : 19,126.71 = 5,357.77 : x
  2. Step 2: Convert to fraction form
    12,753.17/19,126.71 = 5,357.77/x
  3. Step 3: Cross multiply
    12,753.17x = 19,126.71 × 5,357.77
  4. Step 4: Simplify right side
    12,753.17x = 102,476,465.22
  5. Step 5: Solve for x
    x = 102,476,465.22/12,753.17
  6. Step 6: Final answer
    x = 8,035.38

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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.