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Finding the Fourth Proportional to 16,855, 25,281.46 and 5,167.32

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Solution

The fourth proportional to 16,855, 25,281.46 and 5,167.32 is: 7,750.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855 : 25,281.46 = 5,167.32 : x
  2. Step 2: Convert to fraction form
    16,855/25,281.46 = 5,167.32/x
  3. Step 3: Cross multiply
    16,855x = 25,281.46 × 5,167.32
  4. Step 4: Simplify right side
    16,855x = 130,637,393.89
  5. Step 5: Solve for x
    x = 130,637,393.89/16,855
  6. Step 6: Final answer
    x = 7,750.66

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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.