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Finding the Fourth Proportional to 19,588.98, 29,395.16 and 7,109.99

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Solution

The fourth proportional to 19,588.98, 29,395.16 and 7,109.99 is: 10,669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,588.98 : 29,395.16 = 7,109.99 : x
  2. Step 2: Convert to fraction form
    19,588.98/29,395.16 = 7,109.99/x
  3. Step 3: Cross multiply
    19,588.98x = 29,395.16 × 7,109.99
  4. Step 4: Simplify right side
    19,588.98x = 208,999,293.65
  5. Step 5: Solve for x
    x = 208,999,293.65/19,588.98
  6. Step 6: Final answer
    x = 10,669.23

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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.