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Finding the Fourth Proportional to 35,297.50, 48,710.55 and 20,393.50

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Solution

The fourth proportional to 35,297.50, 48,710.55 and 20,393.50 is: 28,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,297.50 : 48,710.55 = 20,393.50 : x
  2. Step 2: Convert to fraction form
    35,297.50/48,710.55 = 20,393.50/x
  3. Step 3: Cross multiply
    35,297.50x = 48,710.55 × 20,393.50
  4. Step 4: Simplify right side
    35,297.50x = 993,378,601.43
  5. Step 5: Solve for x
    x = 993,378,601.43/35,297.50
  6. Step 6: Final answer
    x = 28,143.03

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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.