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Finding the Fourth Proportional to 14,077.71, 19,426.97 and 7,790.09

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Solution

The fourth proportional to 14,077.71, 19,426.97 and 7,790.09 is: 10,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.71 : 19,426.97 = 7,790.09 : x
  2. Step 2: Convert to fraction form
    14,077.71/19,426.97 = 7,790.09/x
  3. Step 3: Cross multiply
    14,077.71x = 19,426.97 × 7,790.09
  4. Step 4: Simplify right side
    14,077.71x = 151,337,767.07
  5. Step 5: Solve for x
    x = 151,337,767.07/14,077.71
  6. Step 6: Final answer
    x = 10,750.17

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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.