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Finding the Fourth Proportional to 19,706.99, 29,551.59 and 5,663.81

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Solution

The fourth proportional to 19,706.99, 29,551.59 and 5,663.81 is: 8,493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,706.99 : 29,551.59 = 5,663.81 : x
  2. Step 2: Convert to fraction form
    19,706.99/29,551.59 = 5,663.81/x
  3. Step 3: Cross multiply
    19,706.99x = 29,551.59 × 5,663.81
  4. Step 4: Simplify right side
    19,706.99x = 167,374,443.20
  5. Step 5: Solve for x
    x = 167,374,443.20/19,706.99
  6. Step 6: Final answer
    x = 8,493.15

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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.