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Finding the Fourth Proportional to 34,671.66, 52,009.20 and 13,609.80

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Solution

The fourth proportional to 34,671.66, 52,009.20 and 13,609.80 is: 20,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,671.66 : 52,009.20 = 13,609.80 : x
  2. Step 2: Convert to fraction form
    34,671.66/52,009.20 = 13,609.80/x
  3. Step 3: Cross multiply
    34,671.66x = 52,009.20 × 13,609.80
  4. Step 4: Simplify right side
    34,671.66x = 707,834,810.16
  5. Step 5: Solve for x
    x = 707,834,810.16/34,671.66
  6. Step 6: Final answer
    x = 20,415.37

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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.