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Finding the Fourth Proportional to 9,918.73, 14,878.99 and 4,370.76

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Solution

The fourth proportional to 9,918.73, 14,878.99 and 4,370.76 is: 6,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.73 : 14,878.99 = 4,370.76 : x
  2. Step 2: Convert to fraction form
    9,918.73/14,878.99 = 4,370.76/x
  3. Step 3: Cross multiply
    9,918.73x = 14,878.99 × 4,370.76
  4. Step 4: Simplify right side
    9,918.73x = 65,032,494.33
  5. Step 5: Solve for x
    x = 65,032,494.33/9,918.73
  6. Step 6: Final answer
    x = 6,556.53

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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.