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Finding the Fourth Proportional to 17,117.17, 25,686.77 and 8,347.30

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Solution

The fourth proportional to 17,117.17, 25,686.77 and 8,347.30 is: 12,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.17 : 25,686.77 = 8,347.30 : x
  2. Step 2: Convert to fraction form
    17,117.17/25,686.77 = 8,347.30/x
  3. Step 3: Cross multiply
    17,117.17x = 25,686.77 × 8,347.30
  4. Step 4: Simplify right side
    17,117.17x = 214,415,260.71
  5. Step 5: Solve for x
    x = 214,415,260.71/17,117.17
  6. Step 6: Final answer
    x = 12,526.32

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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.