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Finding the Fourth Proportional to 34,070.60, 51,105.90 and 9,110.60

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Solution

The fourth proportional to 34,070.60, 51,105.90 and 9,110.60 is: 13,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,070.60 : 51,105.90 = 9,110.60 : x
  2. Step 2: Convert to fraction form
    34,070.60/51,105.90 = 9,110.60/x
  3. Step 3: Cross multiply
    34,070.60x = 51,105.90 × 9,110.60
  4. Step 4: Simplify right side
    34,070.60x = 465,605,412.54
  5. Step 5: Solve for x
    x = 465,605,412.54/34,070.60
  6. Step 6: Final answer
    x = 13,665.90

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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.