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Finding the Fourth Proportional to 72,874.29, 100,612.95 and 59,477.51

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Solution

The fourth proportional to 72,874.29, 100,612.95 and 59,477.51 is: 82,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,874.29 : 100,612.95 = 59,477.51 : x
  2. Step 2: Convert to fraction form
    72,874.29/100,612.95 = 59,477.51/x
  3. Step 3: Cross multiply
    72,874.29x = 100,612.95 × 59,477.51
  4. Step 4: Simplify right side
    72,874.29x = 5,984,207,236.69
  5. Step 5: Solve for x
    x = 5,984,207,236.69/72,874.29
  6. Step 6: Final answer
    x = 82,116.85

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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.