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Finding the Fourth Proportional to 19,423.51, 29,135.02 and 5,572.51

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Solution

The fourth proportional to 19,423.51, 29,135.02 and 5,572.51 is: 8,358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,423.51 : 29,135.02 = 5,572.51 : x
  2. Step 2: Convert to fraction form
    19,423.51/29,135.02 = 5,572.51/x
  3. Step 3: Cross multiply
    19,423.51x = 29,135.02 × 5,572.51
  4. Step 4: Simplify right side
    19,423.51x = 162,355,190.30
  5. Step 5: Solve for x
    x = 162,355,190.30/19,423.51
  6. Step 6: Final answer
    x = 8,358.69

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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.