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Finding the Fourth Proportional to 17,007.60, 25,511.40 and 15,914.10

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Solution

The fourth proportional to 17,007.60, 25,511.40 and 15,914.10 is: 23,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,007.60 : 25,511.40 = 15,914.10 : x
  2. Step 2: Convert to fraction form
    17,007.60/25,511.40 = 15,914.10/x
  3. Step 3: Cross multiply
    17,007.60x = 25,511.40 × 15,914.10
  4. Step 4: Simplify right side
    17,007.60x = 405,990,970.74
  5. Step 5: Solve for x
    x = 405,990,970.74/17,007.60
  6. Step 6: Final answer
    x = 23,871.15

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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.