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Finding the Fourth Proportional to 20,058.84, 30,088.06 and 6,911.12

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Solution

The fourth proportional to 20,058.84, 30,088.06 and 6,911.12 is: 10,366.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.84 : 30,088.06 = 6,911.12 : x
  2. Step 2: Convert to fraction form
    20,058.84/30,088.06 = 6,911.12/x
  3. Step 3: Cross multiply
    20,058.84x = 30,088.06 × 6,911.12
  4. Step 4: Simplify right side
    20,058.84x = 207,942,251.17
  5. Step 5: Solve for x
    x = 207,942,251.17/20,058.84
  6. Step 6: Final answer
    x = 10,366.61

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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.