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Finding the Fourth Proportional to 15,671.57, 23,490.95 and 7,344.57

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Solution

The fourth proportional to 15,671.57, 23,490.95 and 7,344.57 is: 11,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.57 : 23,490.95 = 7,344.57 : x
  2. Step 2: Convert to fraction form
    15,671.57/23,490.95 = 7,344.57/x
  3. Step 3: Cross multiply
    15,671.57x = 23,490.95 × 7,344.57
  4. Step 4: Simplify right side
    15,671.57x = 172,530,889.92
  5. Step 5: Solve for x
    x = 172,530,889.92/15,671.57
  6. Step 6: Final answer
    x = 11,009.17

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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.