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Finding the Fourth Proportional to 35,321.74, 48,741.98 and 19,405.87

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Solution

The fourth proportional to 35,321.74, 48,741.98 and 19,405.87 is: 26,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.74 : 48,741.98 = 19,405.87 : x
  2. Step 2: Convert to fraction form
    35,321.74/48,741.98 = 19,405.87/x
  3. Step 3: Cross multiply
    35,321.74x = 48,741.98 × 19,405.87
  4. Step 4: Simplify right side
    35,321.74x = 945,880,527.42
  5. Step 5: Solve for x
    x = 945,880,527.42/35,321.74
  6. Step 6: Final answer
    x = 26,778.99

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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.