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Finding the Fourth Proportional to 19,072.53, 28,605.24 and 7,976.16

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Solution

The fourth proportional to 19,072.53, 28,605.24 and 7,976.16 is: 11,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.53 : 28,605.24 = 7,976.16 : x
  2. Step 2: Convert to fraction form
    19,072.53/28,605.24 = 7,976.16/x
  3. Step 3: Cross multiply
    19,072.53x = 28,605.24 × 7,976.16
  4. Step 4: Simplify right side
    19,072.53x = 228,159,971.08
  5. Step 5: Solve for x
    x = 228,159,971.08/19,072.53
  6. Step 6: Final answer
    x = 11,962.75

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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.