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Finding the Fourth Proportional to 30,672.61, 46,008.92 and 9,612.65

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Solution

The fourth proportional to 30,672.61, 46,008.92 and 9,612.65 is: 14,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.61 : 46,008.92 = 9,612.65 : x
  2. Step 2: Convert to fraction form
    30,672.61/46,008.92 = 9,612.65/x
  3. Step 3: Cross multiply
    30,672.61x = 46,008.92 × 9,612.65
  4. Step 4: Simplify right side
    30,672.61x = 442,267,644.84
  5. Step 5: Solve for x
    x = 442,267,644.84/30,672.61
  6. Step 6: Final answer
    x = 14,418.98

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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.