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Finding the Fourth Proportional to 34,200.40, 51,300.60 and 26,424.40

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Solution

The fourth proportional to 34,200.40, 51,300.60 and 26,424.40 is: 39,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,200.40 : 51,300.60 = 26,424.40 : x
  2. Step 2: Convert to fraction form
    34,200.40/51,300.60 = 26,424.40/x
  3. Step 3: Cross multiply
    34,200.40x = 51,300.60 × 26,424.40
  4. Step 4: Simplify right side
    34,200.40x = 1,355,587,574.64
  5. Step 5: Solve for x
    x = 1,355,587,574.64/34,200.40
  6. Step 6: Final answer
    x = 39,636.60

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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.