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Finding the Fourth Proportional to 72,473.13, 108,714.15 and 19,166.22

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Solution

The fourth proportional to 72,473.13, 108,714.15 and 19,166.22 is: 28,750.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.13 : 108,714.15 = 19,166.22 : x
  2. Step 2: Convert to fraction form
    72,473.13/108,714.15 = 19,166.22/x
  3. Step 3: Cross multiply
    72,473.13x = 108,714.15 × 19,166.22
  4. Step 4: Simplify right side
    72,473.13x = 2,083,639,316.01
  5. Step 5: Solve for x
    x = 2,083,639,316.01/72,473.13
  6. Step 6: Final answer
    x = 28,750.51

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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.