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Finding the Fourth Proportional to 30,484.45, 45,731.08 and 9,426.22

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Solution

The fourth proportional to 30,484.45, 45,731.08 and 9,426.22 is: 14,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.45 : 45,731.08 = 9,426.22 : x
  2. Step 2: Convert to fraction form
    30,484.45/45,731.08 = 9,426.22/x
  3. Step 3: Cross multiply
    30,484.45x = 45,731.08 × 9,426.22
  4. Step 4: Simplify right side
    30,484.45x = 431,071,375.61
  5. Step 5: Solve for x
    x = 431,071,375.61/30,484.45
  6. Step 6: Final answer
    x = 14,140.70

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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.