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Finding the Fourth Proportional to 30,672.55, 46,008.76 and 9,614.21

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Solution

The fourth proportional to 30,672.55, 46,008.76 and 9,614.21 is: 14,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.55 : 46,008.76 = 9,614.21 : x
  2. Step 2: Convert to fraction form
    30,672.55/46,008.76 = 9,614.21/x
  3. Step 3: Cross multiply
    30,672.55x = 46,008.76 × 9,614.21
  4. Step 4: Simplify right side
    30,672.55x = 442,337,626.40
  5. Step 5: Solve for x
    x = 442,337,626.40/30,672.55
  6. Step 6: Final answer
    x = 14,421.29

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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.