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Finding the Fourth Proportional to 19,385.48, 29,091.12 and 7,073.48

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Solution

The fourth proportional to 19,385.48, 29,091.12 and 7,073.48 is: 10,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.48 : 29,091.12 = 7,073.48 : x
  2. Step 2: Convert to fraction form
    19,385.48/29,091.12 = 7,073.48/x
  3. Step 3: Cross multiply
    19,385.48x = 29,091.12 × 7,073.48
  4. Step 4: Simplify right side
    19,385.48x = 205,775,455.50
  5. Step 5: Solve for x
    x = 205,775,455.50/19,385.48
  6. Step 6: Final answer
    x = 10,614.93

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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.