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Finding the Fourth Proportional to 30,467.40, 45,701.10 and 26,579.40

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Solution

The fourth proportional to 30,467.40, 45,701.10 and 26,579.40 is: 39,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,467.40 : 45,701.10 = 26,579.40 : x
  2. Step 2: Convert to fraction form
    30,467.40/45,701.10 = 26,579.40/x
  3. Step 3: Cross multiply
    30,467.40x = 45,701.10 × 26,579.40
  4. Step 4: Simplify right side
    30,467.40x = 1,214,707,817.34
  5. Step 5: Solve for x
    x = 1,214,707,817.34/30,467.40
  6. Step 6: Final answer
    x = 39,869.10

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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.