Home / 19,466.46-29,203.34-7,779.78

Finding the Fourth Proportional to 19,466.46, 29,203.34 and 7,779.78

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Solution

The fourth proportional to 19,466.46, 29,203.34 and 7,779.78 is: 11,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,466.46 : 29,203.34 = 7,779.78 : x
  2. Step 2: Convert to fraction form
    19,466.46/29,203.34 = 7,779.78/x
  3. Step 3: Cross multiply
    19,466.46x = 29,203.34 × 7,779.78
  4. Step 4: Simplify right side
    19,466.46x = 227,195,521.57
  5. Step 5: Solve for x
    x = 227,195,521.57/19,466.46
  6. Step 6: Final answer
    x = 11,671.13

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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.