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Finding the Fourth Proportional to 15,753.61, 23,631.56 and 5,223.21

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Solution

The fourth proportional to 15,753.61, 23,631.56 and 5,223.21 is: 7,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753.61 : 23,631.56 = 5,223.21 : x
  2. Step 2: Convert to fraction form
    15,753.61/23,631.56 = 5,223.21/x
  3. Step 3: Cross multiply
    15,753.61x = 23,631.56 × 5,223.21
  4. Step 4: Simplify right side
    15,753.61x = 123,432,600.51
  5. Step 5: Solve for x
    x = 123,432,600.51/15,753.61
  6. Step 6: Final answer
    x = 7,835.19

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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.