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Finding the Fourth Proportional to 14,777.25, 22,172.36 and 8,621.25

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Solution

The fourth proportional to 14,777.25, 22,172.36 and 8,621.25 is: 12,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.25 : 22,172.36 = 8,621.25 : x
  2. Step 2: Convert to fraction form
    14,777.25/22,172.36 = 8,621.25/x
  3. Step 3: Cross multiply
    14,777.25x = 22,172.36 × 8,621.25
  4. Step 4: Simplify right side
    14,777.25x = 191,153,415.54
  5. Step 5: Solve for x
    x = 191,153,415.54/14,777.25
  6. Step 6: Final answer
    x = 12,935.66

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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.