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Finding the Fourth Proportional to 10,592.87, 15,891.32 and 5,328.98

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Solution

The fourth proportional to 10,592.87, 15,891.32 and 5,328.98 is: 7,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,592.87 : 15,891.32 = 5,328.98 : x
  2. Step 2: Convert to fraction form
    10,592.87/15,891.32 = 5,328.98/x
  3. Step 3: Cross multiply
    10,592.87x = 15,891.32 × 5,328.98
  4. Step 4: Simplify right side
    10,592.87x = 84,684,420.35
  5. Step 5: Solve for x
    x = 84,684,420.35/10,592.87
  6. Step 6: Final answer
    x = 7,994.48

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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.