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Finding the Fourth Proportional to 19,317.40, 29,040.90 and 16,466.20

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Solution

The fourth proportional to 19,317.40, 29,040.90 and 16,466.20 is: 24,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.40 : 29,040.90 = 16,466.20 : x
  2. Step 2: Convert to fraction form
    19,317.40/29,040.90 = 16,466.20/x
  3. Step 3: Cross multiply
    19,317.40x = 29,040.90 × 16,466.20
  4. Step 4: Simplify right side
    19,317.40x = 478,193,267.58
  5. Step 5: Solve for x
    x = 478,193,267.58/19,317.40
  6. Step 6: Final answer
    x = 24,754.54

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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.