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Finding the Fourth Proportional to 15,596.74, 21,523.89 and 8,523.01

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Solution

The fourth proportional to 15,596.74, 21,523.89 and 8,523.01 is: 11,761.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,596.74 : 21,523.89 = 8,523.01 : x
  2. Step 2: Convert to fraction form
    15,596.74/21,523.89 = 8,523.01/x
  3. Step 3: Cross multiply
    15,596.74x = 21,523.89 × 8,523.01
  4. Step 4: Simplify right side
    15,596.74x = 183,448,329.71
  5. Step 5: Solve for x
    x = 183,448,329.71/15,596.74
  6. Step 6: Final answer
    x = 11,761.97

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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.