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Finding the Fourth Proportional to 30,461.61, 45,680.29 and 11,731.27

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Solution

The fourth proportional to 30,461.61, 45,680.29 and 11,731.27 is: 17,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,461.61 : 45,680.29 = 11,731.27 : x
  2. Step 2: Convert to fraction form
    30,461.61/45,680.29 = 11,731.27/x
  3. Step 3: Cross multiply
    30,461.61x = 45,680.29 × 11,731.27
  4. Step 4: Simplify right side
    30,461.61x = 535,887,815.67
  5. Step 5: Solve for x
    x = 535,887,815.67/30,461.61
  6. Step 6: Final answer
    x = 17,592.24

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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.