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Finding the Fourth Proportional to 20,193.51, 30,355.88 and 20,095.10

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Solution

The fourth proportional to 20,193.51, 30,355.88 and 20,095.10 is: 30,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.51 : 30,355.88 = 20,095.10 : x
  2. Step 2: Convert to fraction form
    20,193.51/30,355.88 = 20,095.10/x
  3. Step 3: Cross multiply
    20,193.51x = 30,355.88 × 20,095.10
  4. Step 4: Simplify right side
    20,193.51x = 610,004,444.19
  5. Step 5: Solve for x
    x = 610,004,444.19/20,193.51
  6. Step 6: Final answer
    x = 30,207.95

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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.