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Finding the Fourth Proportional to 70,024.95, 105,080.45 and 36,768.87

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Solution

The fourth proportional to 70,024.95, 105,080.45 and 36,768.87 is: 55,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,024.95 : 105,080.45 = 36,768.87 : x
  2. Step 2: Convert to fraction form
    70,024.95/105,080.45 = 36,768.87/x
  3. Step 3: Cross multiply
    70,024.95x = 105,080.45 × 36,768.87
  4. Step 4: Simplify right side
    70,024.95x = 3,863,689,221.75
  5. Step 5: Solve for x
    x = 3,863,689,221.75/70,024.95
  6. Step 6: Final answer
    x = 55,175.89

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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.