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Finding the Fourth Proportional to 17,647.60, 26,463.42 and 12,696.48

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Solution

The fourth proportional to 17,647.60, 26,463.42 and 12,696.48 is: 19,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.60 : 26,463.42 = 12,696.48 : x
  2. Step 2: Convert to fraction form
    17,647.60/26,463.42 = 12,696.48/x
  3. Step 3: Cross multiply
    17,647.60x = 26,463.42 × 12,696.48
  4. Step 4: Simplify right side
    17,647.60x = 335,992,282.76
  5. Step 5: Solve for x
    x = 335,992,282.76/17,647.60
  6. Step 6: Final answer
    x = 19,038.98

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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.