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Finding the Fourth Proportional to 45,632.70, 68,436.90 and 14,042.70

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Solution

The fourth proportional to 45,632.70, 68,436.90 and 14,042.70 is: 21,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,632.70 : 68,436.90 = 14,042.70 : x
  2. Step 2: Convert to fraction form
    45,632.70/68,436.90 = 14,042.70/x
  3. Step 3: Cross multiply
    45,632.70x = 68,436.90 × 14,042.70
  4. Step 4: Simplify right side
    45,632.70x = 961,038,855.63
  5. Step 5: Solve for x
    x = 961,038,855.63/45,632.70
  6. Step 6: Final answer
    x = 21,060.31

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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.