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Finding the Fourth Proportional to 19,562.51, 29,336.80 and 7,079.30

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Solution

The fourth proportional to 19,562.51, 29,336.80 and 7,079.30 is: 10,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,562.51 : 29,336.80 = 7,079.30 : x
  2. Step 2: Convert to fraction form
    19,562.51/29,336.80 = 7,079.30/x
  3. Step 3: Cross multiply
    19,562.51x = 29,336.80 × 7,079.30
  4. Step 4: Simplify right side
    19,562.51x = 207,683,967.14
  5. Step 5: Solve for x
    x = 207,683,967.14/19,562.51
  6. Step 6: Final answer
    x = 10,616.43

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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.