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Finding the Fourth Proportional to 19,658.48, 29,464.48 and 19,439.24

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Solution

The fourth proportional to 19,658.48, 29,464.48 and 19,439.24 is: 29,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.48 : 29,464.48 = 19,439.24 : x
  2. Step 2: Convert to fraction form
    19,658.48/29,464.48 = 19,439.24/x
  3. Step 3: Cross multiply
    19,658.48x = 29,464.48 × 19,439.24
  4. Step 4: Simplify right side
    19,658.48x = 572,767,098.20
  5. Step 5: Solve for x
    x = 572,767,098.20/19,658.48
  6. Step 6: Final answer
    x = 29,135.88

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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.