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Finding the Fourth Proportional to 19,491.50, 26,898.27 and 10,659.50

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Solution

The fourth proportional to 19,491.50, 26,898.27 and 10,659.50 is: 14,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.50 : 26,898.27 = 10,659.50 : x
  2. Step 2: Convert to fraction form
    19,491.50/26,898.27 = 10,659.50/x
  3. Step 3: Cross multiply
    19,491.50x = 26,898.27 × 10,659.50
  4. Step 4: Simplify right side
    19,491.50x = 286,722,109.07
  5. Step 5: Solve for x
    x = 286,722,109.07/19,491.50
  6. Step 6: Final answer
    x = 14,710.11

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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.