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Finding the Fourth Proportional to 15,766.13, 21,756.96 and 8,596.10

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Solution

The fourth proportional to 15,766.13, 21,756.96 and 8,596.10 is: 11,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.13 : 21,756.96 = 8,596.10 : x
  2. Step 2: Convert to fraction form
    15,766.13/21,756.96 = 8,596.10/x
  3. Step 3: Cross multiply
    15,766.13x = 21,756.96 × 8,596.10
  4. Step 4: Simplify right side
    15,766.13x = 187,024,895.07
  5. Step 5: Solve for x
    x = 187,024,895.07/15,766.13
  6. Step 6: Final answer
    x = 11,862.45

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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.