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Finding the Fourth Proportional to 13,592.79, 18,757.74 and 7,624.32

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Solution

The fourth proportional to 13,592.79, 18,757.74 and 7,624.32 is: 10,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.79 : 18,757.74 = 7,624.32 : x
  2. Step 2: Convert to fraction form
    13,592.79/18,757.74 = 7,624.32/x
  3. Step 3: Cross multiply
    13,592.79x = 18,757.74 × 7,624.32
  4. Step 4: Simplify right side
    13,592.79x = 143,015,012.24
  5. Step 5: Solve for x
    x = 143,015,012.24/13,592.79
  6. Step 6: Final answer
    x = 10,521.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.