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Finding the Fourth Proportional to 35,503.95, 48,994.81 and 20,193.30

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Solution

The fourth proportional to 35,503.95, 48,994.81 and 20,193.30 is: 27,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503.95 : 48,994.81 = 20,193.30 : x
  2. Step 2: Convert to fraction form
    35,503.95/48,994.81 = 20,193.30/x
  3. Step 3: Cross multiply
    35,503.95x = 48,994.81 × 20,193.30
  4. Step 4: Simplify right side
    35,503.95x = 989,366,846.29
  5. Step 5: Solve for x
    x = 989,366,846.29/35,503.95
  6. Step 6: Final answer
    x = 27,866.39

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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.