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Finding the Fourth Proportional to 14,388.78, 21,583.17 and 4,528.92

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Solution

The fourth proportional to 14,388.78, 21,583.17 and 4,528.92 is: 6,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.78 : 21,583.17 = 4,528.92 : x
  2. Step 2: Convert to fraction form
    14,388.78/21,583.17 = 4,528.92/x
  3. Step 3: Cross multiply
    14,388.78x = 21,583.17 × 4,528.92
  4. Step 4: Simplify right side
    14,388.78x = 97,748,450.28
  5. Step 5: Solve for x
    x = 97,748,450.28/14,388.78
  6. Step 6: Final answer
    x = 6,793.38

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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.