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Finding the Fourth Proportional to 71,035.83, 98,024.22 and 40,821.21

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Solution

The fourth proportional to 71,035.83, 98,024.22 and 40,821.21 is: 56,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,035.83 : 98,024.22 = 40,821.21 : x
  2. Step 2: Convert to fraction form
    71,035.83/98,024.22 = 40,821.21/x
  3. Step 3: Cross multiply
    71,035.83x = 98,024.22 × 40,821.21
  4. Step 4: Simplify right side
    71,035.83x = 4,001,467,269.71
  5. Step 5: Solve for x
    x = 4,001,467,269.71/71,035.83
  6. Step 6: Final answer
    x = 56,330.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.