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Finding the Fourth Proportional to 17,572.76, 26,358.30 and 12,651.16

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Solution

The fourth proportional to 17,572.76, 26,358.30 and 12,651.16 is: 18,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,572.76 : 26,358.30 = 12,651.16 : x
  2. Step 2: Convert to fraction form
    17,572.76/26,358.30 = 12,651.16/x
  3. Step 3: Cross multiply
    17,572.76x = 26,358.30 × 12,651.16
  4. Step 4: Simplify right side
    17,572.76x = 333,463,070.63
  5. Step 5: Solve for x
    x = 333,463,070.63/17,572.76
  6. Step 6: Final answer
    x = 18,976.14

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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.