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Finding the Fourth Proportional to 23,407.65, 35,089.92 and 8,605.31

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Solution

The fourth proportional to 23,407.65, 35,089.92 and 8,605.31 is: 12,900.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,407.65 : 35,089.92 = 8,605.31 : x
  2. Step 2: Convert to fraction form
    23,407.65/35,089.92 = 8,605.31/x
  3. Step 3: Cross multiply
    23,407.65x = 35,089.92 × 8,605.31
  4. Step 4: Simplify right side
    23,407.65x = 301,959,464.03
  5. Step 5: Solve for x
    x = 301,959,464.03/23,407.65
  6. Step 6: Final answer
    x = 12,900.03

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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.