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Finding the Fourth Proportional to 17,417.60, 26,110.20 and 12,152.60

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Solution

The fourth proportional to 17,417.60, 26,110.20 and 12,152.60 is: 18,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,417.60 : 26,110.20 = 12,152.60 : x
  2. Step 2: Convert to fraction form
    17,417.60/26,110.20 = 12,152.60/x
  3. Step 3: Cross multiply
    17,417.60x = 26,110.20 × 12,152.60
  4. Step 4: Simplify right side
    17,417.60x = 317,306,816.52
  5. Step 5: Solve for x
    x = 317,306,816.52/17,417.60
  6. Step 6: Final answer
    x = 18,217.60

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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.