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Finding the Fourth Proportional to 23,312.31, 34,973.52 and 8,521.21

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Solution

The fourth proportional to 23,312.31, 34,973.52 and 8,521.21 is: 12,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,312.31 : 34,973.52 = 8,521.21 : x
  2. Step 2: Convert to fraction form
    23,312.31/34,973.52 = 8,521.21/x
  3. Step 3: Cross multiply
    23,312.31x = 34,973.52 × 8,521.21
  4. Step 4: Simplify right side
    23,312.31x = 298,016,708.36
  5. Step 5: Solve for x
    x = 298,016,708.36/23,312.31
  6. Step 6: Final answer
    x = 12,783.66

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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.