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Finding the Fourth Proportional to 15,671.76, 21,627.06 and 8,598.24

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Solution

The fourth proportional to 15,671.76, 21,627.06 and 8,598.24 is: 11,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671.76 : 21,627.06 = 8,598.24 : x
  2. Step 2: Convert to fraction form
    15,671.76/21,627.06 = 8,598.24/x
  3. Step 3: Cross multiply
    15,671.76x = 21,627.06 × 8,598.24
  4. Step 4: Simplify right side
    15,671.76x = 185,954,652.37
  5. Step 5: Solve for x
    x = 185,954,652.37/15,671.76
  6. Step 6: Final answer
    x = 11,865.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.