Home / 19,670.11-29,510.64-8,577.78

Finding the Fourth Proportional to 19,670.11, 29,510.64 and 8,577.78

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Solution

The fourth proportional to 19,670.11, 29,510.64 and 8,577.78 is: 12,869.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.11 : 29,510.64 = 8,577.78 : x
  2. Step 2: Convert to fraction form
    19,670.11/29,510.64 = 8,577.78/x
  3. Step 3: Cross multiply
    19,670.11x = 29,510.64 × 8,577.78
  4. Step 4: Simplify right side
    19,670.11x = 253,135,777.58
  5. Step 5: Solve for x
    x = 253,135,777.58/19,670.11
  6. Step 6: Final answer
    x = 12,869.06

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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.