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Finding the Fourth Proportional to 12,392.17, 18,594.63 and 8,235.04

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Solution

The fourth proportional to 12,392.17, 18,594.63 and 8,235.04 is: 12,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.17 : 18,594.63 = 8,235.04 : x
  2. Step 2: Convert to fraction form
    12,392.17/18,594.63 = 8,235.04/x
  3. Step 3: Cross multiply
    12,392.17x = 18,594.63 × 8,235.04
  4. Step 4: Simplify right side
    12,392.17x = 153,127,521.84
  5. Step 5: Solve for x
    x = 153,127,521.84/12,392.17
  6. Step 6: Final answer
    x = 12,356.80

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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.