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Finding the Fourth Proportional to 19,709.99, 27,199.58 and 10,757.39

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Solution

The fourth proportional to 19,709.99, 27,199.58 and 10,757.39 is: 14,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.99 : 27,199.58 = 10,757.39 : x
  2. Step 2: Convert to fraction form
    19,709.99/27,199.58 = 10,757.39/x
  3. Step 3: Cross multiply
    19,709.99x = 27,199.58 × 10,757.39
  4. Step 4: Simplify right side
    19,709.99x = 292,596,300.11
  5. Step 5: Solve for x
    x = 292,596,300.11/19,709.99
  6. Step 6: Final answer
    x = 14,845.08

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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.