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Finding the Fourth Proportional to 17,915.52, 26,873.88 and 8,556.60

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Solution

The fourth proportional to 17,915.52, 26,873.88 and 8,556.60 is: 12,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.52 : 26,873.88 = 8,556.60 : x
  2. Step 2: Convert to fraction form
    17,915.52/26,873.88 = 8,556.60/x
  3. Step 3: Cross multiply
    17,915.52x = 26,873.88 × 8,556.60
  4. Step 4: Simplify right side
    17,915.52x = 229,949,041.61
  5. Step 5: Solve for x
    x = 229,949,041.61/17,915.52
  6. Step 6: Final answer
    x = 12,835.19

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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.