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Finding the Fourth Proportional to 70,006.32, 105,070.20 and 36,749.88

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Solution

The fourth proportional to 70,006.32, 105,070.20 and 36,749.88 is: 55,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,006.32 : 105,070.20 = 36,749.88 : x
  2. Step 2: Convert to fraction form
    70,006.32/105,070.20 = 36,749.88/x
  3. Step 3: Cross multiply
    70,006.32x = 105,070.20 × 36,749.88
  4. Step 4: Simplify right side
    70,006.32x = 3,861,317,241.58
  5. Step 5: Solve for x
    x = 3,861,317,241.58/70,006.32
  6. Step 6: Final answer
    x = 55,156.70

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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.