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Finding the Fourth Proportional to 12,683.34, 19,024.80 and 3,917.22

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Solution

The fourth proportional to 12,683.34, 19,024.80 and 3,917.22 is: 5,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.34 : 19,024.80 = 3,917.22 : x
  2. Step 2: Convert to fraction form
    12,683.34/19,024.80 = 3,917.22/x
  3. Step 3: Cross multiply
    12,683.34x = 19,024.80 × 3,917.22
  4. Step 4: Simplify right side
    12,683.34x = 74,524,327.06
  5. Step 5: Solve for x
    x = 74,524,327.06/12,683.34
  6. Step 6: Final answer
    x = 5,875.77

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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.