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Finding the Fourth Proportional to 10,570.75, 15,856.50 and 3,550.99

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Solution

The fourth proportional to 10,570.75, 15,856.50 and 3,550.99 is: 5,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,570.75 : 15,856.50 = 3,550.99 : x
  2. Step 2: Convert to fraction form
    10,570.75/15,856.50 = 3,550.99/x
  3. Step 3: Cross multiply
    10,570.75x = 15,856.50 × 3,550.99
  4. Step 4: Simplify right side
    10,570.75x = 56,306,306.07
  5. Step 5: Solve for x
    x = 56,306,306.07/10,570.75
  6. Step 6: Final answer
    x = 5,326.62

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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.