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Finding the Fourth Proportional to 19,679.52, 29,507.04 and 6,528.48

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Solution

The fourth proportional to 19,679.52, 29,507.04 and 6,528.48 is: 9,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.52 : 29,507.04 = 6,528.48 : x
  2. Step 2: Convert to fraction form
    19,679.52/29,507.04 = 6,528.48/x
  3. Step 3: Cross multiply
    19,679.52x = 29,507.04 × 6,528.48
  4. Step 4: Simplify right side
    19,679.52x = 192,636,120.50
  5. Step 5: Solve for x
    x = 192,636,120.50/19,679.52
  6. Step 6: Final answer
    x = 9,788.66

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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.