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Finding the Fourth Proportional to 15,164.61, 20,927.55 and 8,450.52

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Solution

The fourth proportional to 15,164.61, 20,927.55 and 8,450.52 is: 11,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.61 : 20,927.55 = 8,450.52 : x
  2. Step 2: Convert to fraction form
    15,164.61/20,927.55 = 8,450.52/x
  3. Step 3: Cross multiply
    15,164.61x = 20,927.55 × 8,450.52
  4. Step 4: Simplify right side
    15,164.61x = 176,848,679.83
  5. Step 5: Solve for x
    x = 176,848,679.83/15,164.61
  6. Step 6: Final answer
    x = 11,661.93

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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.