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Finding the Fourth Proportional to 45,752.94, 68,622.48 and 12,475.71

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Solution

The fourth proportional to 45,752.94, 68,622.48 and 12,475.71 is: 18,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,752.94 : 68,622.48 = 12,475.71 : x
  2. Step 2: Convert to fraction form
    45,752.94/68,622.48 = 12,475.71/x
  3. Step 3: Cross multiply
    45,752.94x = 68,622.48 × 12,475.71
  4. Step 4: Simplify right side
    45,752.94x = 856,114,159.96
  5. Step 5: Solve for x
    x = 856,114,159.96/45,752.94
  6. Step 6: Final answer
    x = 18,711.68

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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.