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Finding the Fourth Proportional to 19,195.47, 28,764.99 and 9,323.46

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Solution

The fourth proportional to 19,195.47, 28,764.99 and 9,323.46 is: 13,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.47 : 28,764.99 = 9,323.46 : x
  2. Step 2: Convert to fraction form
    19,195.47/28,764.99 = 9,323.46/x
  3. Step 3: Cross multiply
    19,195.47x = 28,764.99 × 9,323.46
  4. Step 4: Simplify right side
    19,195.47x = 268,189,233.67
  5. Step 5: Solve for x
    x = 268,189,233.67/19,195.47
  6. Step 6: Final answer
    x = 13,971.49

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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.