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Finding the Fourth Proportional to 15,912.51, 23,878.02 and 6,553.47

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Solution

The fourth proportional to 15,912.51, 23,878.02 and 6,553.47 is: 9,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.51 : 23,878.02 = 6,553.47 : x
  2. Step 2: Convert to fraction form
    15,912.51/23,878.02 = 6,553.47/x
  3. Step 3: Cross multiply
    15,912.51x = 23,878.02 × 6,553.47
  4. Step 4: Simplify right side
    15,912.51x = 156,483,887.73
  5. Step 5: Solve for x
    x = 156,483,887.73/15,912.51
  6. Step 6: Final answer
    x = 9,834.02

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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.