Home / 17,645.99-26,461.91-7,778.25

Finding the Fourth Proportional to 17,645.99, 26,461.91 and 7,778.25

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Solution

The fourth proportional to 17,645.99, 26,461.91 and 7,778.25 is: 11,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,645.99 : 26,461.91 = 7,778.25 : x
  2. Step 2: Convert to fraction form
    17,645.99/26,461.91 = 7,778.25/x
  3. Step 3: Cross multiply
    17,645.99x = 26,461.91 × 7,778.25
  4. Step 4: Simplify right side
    17,645.99x = 205,827,370.90
  5. Step 5: Solve for x
    x = 205,827,370.90/17,645.99
  6. Step 6: Final answer
    x = 11,664.26

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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.