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Finding the Fourth Proportional to 10,652.45, 14,684.99 and 7,455.85

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Solution

The fourth proportional to 10,652.45, 14,684.99 and 7,455.85 is: 10,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652.45 : 14,684.99 = 7,455.85 : x
  2. Step 2: Convert to fraction form
    10,652.45/14,684.99 = 7,455.85/x
  3. Step 3: Cross multiply
    10,652.45x = 14,684.99 × 7,455.85
  4. Step 4: Simplify right side
    10,652.45x = 109,489,008.70
  5. Step 5: Solve for x
    x = 109,489,008.70/10,652.45
  6. Step 6: Final answer
    x = 10,278.30

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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.