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Finding the Fourth Proportional to 14,392.63, 21,602.34 and 7,377.68

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Solution

The fourth proportional to 14,392.63, 21,602.34 and 7,377.68 is: 11,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.63 : 21,602.34 = 7,377.68 : x
  2. Step 2: Convert to fraction form
    14,392.63/21,602.34 = 7,377.68/x
  3. Step 3: Cross multiply
    14,392.63x = 21,602.34 × 7,377.68
  4. Step 4: Simplify right side
    14,392.63x = 159,375,006.87
  5. Step 5: Solve for x
    x = 159,375,006.87/14,392.63
  6. Step 6: Final answer
    x = 11,073.38

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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.