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Finding the Fourth Proportional to 19,572.67, 29,358.20 and 9,039.22

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Solution

The fourth proportional to 19,572.67, 29,358.20 and 9,039.22 is: 13,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,572.67 : 29,358.20 = 9,039.22 : x
  2. Step 2: Convert to fraction form
    19,572.67/29,358.20 = 9,039.22/x
  3. Step 3: Cross multiply
    19,572.67x = 29,358.20 × 9,039.22
  4. Step 4: Simplify right side
    19,572.67x = 265,375,228.60
  5. Step 5: Solve for x
    x = 265,375,228.60/19,572.67
  6. Step 6: Final answer
    x = 13,558.46

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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.