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Finding the Fourth Proportional to 23,779.92, 35,669.84 and 7,139.93

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Solution

The fourth proportional to 23,779.92, 35,669.84 and 7,139.93 is: 10,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,779.92 : 35,669.84 = 7,139.93 : x
  2. Step 2: Convert to fraction form
    23,779.92/35,669.84 = 7,139.93/x
  3. Step 3: Cross multiply
    23,779.92x = 35,669.84 × 7,139.93
  4. Step 4: Simplify right side
    23,779.92x = 254,679,946.66
  5. Step 5: Solve for x
    x = 254,679,946.66/23,779.92
  6. Step 6: Final answer
    x = 10,709.87

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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.