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Finding the Fourth Proportional to 19,684.62, 29,535.03 and 10,909.08

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Solution

The fourth proportional to 19,684.62, 29,535.03 and 10,909.08 is: 16,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.62 : 29,535.03 = 10,909.08 : x
  2. Step 2: Convert to fraction form
    19,684.62/29,535.03 = 10,909.08/x
  3. Step 3: Cross multiply
    19,684.62x = 29,535.03 × 10,909.08
  4. Step 4: Simplify right side
    19,684.62x = 322,200,005.07
  5. Step 5: Solve for x
    x = 322,200,005.07/19,684.62
  6. Step 6: Final answer
    x = 16,368.11

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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.