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Finding the Fourth Proportional to 19,491.84, 29,237.76 and 7,013.52

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Solution

The fourth proportional to 19,491.84, 29,237.76 and 7,013.52 is: 10,520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.84 : 29,237.76 = 7,013.52 : x
  2. Step 2: Convert to fraction form
    19,491.84/29,237.76 = 7,013.52/x
  3. Step 3: Cross multiply
    19,491.84x = 29,237.76 × 7,013.52
  4. Step 4: Simplify right side
    19,491.84x = 205,059,614.52
  5. Step 5: Solve for x
    x = 205,059,614.52/19,491.84
  6. Step 6: Final answer
    x = 10,520.28

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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.