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Finding the Fourth Proportional to 30,266.70, 45,400.05 and 23,260.20

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Solution

The fourth proportional to 30,266.70, 45,400.05 and 23,260.20 is: 34,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266.70 : 45,400.05 = 23,260.20 : x
  2. Step 2: Convert to fraction form
    30,266.70/45,400.05 = 23,260.20/x
  3. Step 3: Cross multiply
    30,266.70x = 45,400.05 × 23,260.20
  4. Step 4: Simplify right side
    30,266.70x = 1,056,014,243.01
  5. Step 5: Solve for x
    x = 1,056,014,243.01/30,266.70
  6. Step 6: Final answer
    x = 34,890.30

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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.