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Finding the Fourth Proportional to 19,483.74, 29,242.01 and 8,398.69

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Solution

The fourth proportional to 19,483.74, 29,242.01 and 8,398.69 is: 12,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.74 : 29,242.01 = 8,398.69 : x
  2. Step 2: Convert to fraction form
    19,483.74/29,242.01 = 8,398.69/x
  3. Step 3: Cross multiply
    19,483.74x = 29,242.01 × 8,398.69
  4. Step 4: Simplify right side
    19,483.74x = 245,594,524.86
  5. Step 5: Solve for x
    x = 245,594,524.86/19,483.74
  6. Step 6: Final answer
    x = 12,605.10

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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.