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Finding the Fourth Proportional to 17,808.48, 26,712.54 and 7,417.80

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Solution

The fourth proportional to 17,808.48, 26,712.54 and 7,417.80 is: 11,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808.48 : 26,712.54 = 7,417.80 : x
  2. Step 2: Convert to fraction form
    17,808.48/26,712.54 = 7,417.80/x
  3. Step 3: Cross multiply
    17,808.48x = 26,712.54 × 7,417.80
  4. Step 4: Simplify right side
    17,808.48x = 198,148,279.21
  5. Step 5: Solve for x
    x = 198,148,279.21/17,808.48
  6. Step 6: Final answer
    x = 11,126.63

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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.