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Finding the Fourth Proportional to 45,708.70, 68,429.40 and 32,586.70

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Solution

The fourth proportional to 45,708.70, 68,429.40 and 32,586.70 is: 48,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,708.70 : 68,429.40 = 32,586.70 : x
  2. Step 2: Convert to fraction form
    45,708.70/68,429.40 = 32,586.70/x
  3. Step 3: Cross multiply
    45,708.70x = 68,429.40 × 32,586.70
  4. Step 4: Simplify right side
    45,708.70x = 2,229,888,328.98
  5. Step 5: Solve for x
    x = 2,229,888,328.98/45,708.70
  6. Step 6: Final answer
    x = 48,784.77

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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.