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Finding the Fourth Proportional to 19,800.61, 29,704.86 and 6,652.48

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Solution

The fourth proportional to 19,800.61, 29,704.86 and 6,652.48 is: 9,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.61 : 29,704.86 = 6,652.48 : x
  2. Step 2: Convert to fraction form
    19,800.61/29,704.86 = 6,652.48/x
  3. Step 3: Cross multiply
    19,800.61x = 29,704.86 × 6,652.48
  4. Step 4: Simplify right side
    19,800.61x = 197,610,987.05
  5. Step 5: Solve for x
    x = 197,610,987.05/19,800.61
  6. Step 6: Final answer
    x = 9,980.05

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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.