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Finding the Fourth Proportional to 19,588.08, 29,385 and 7,109.04

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Solution

The fourth proportional to 19,588.08, 29,385 and 7,109.04 is: 10,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,588.08 : 29,385 = 7,109.04 : x
  2. Step 2: Convert to fraction form
    19,588.08/29,385 = 7,109.04/x
  3. Step 3: Cross multiply
    19,588.08x = 29,385 × 7,109.04
  4. Step 4: Simplify right side
    19,588.08x = 208,899,140.40
  5. Step 5: Solve for x
    x = 208,899,140.40/19,588.08
  6. Step 6: Final answer
    x = 10,664.61

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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.