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Finding the Fourth Proportional to 15,203.16, 22,804.74 and 12,144.60

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Solution

The fourth proportional to 15,203.16, 22,804.74 and 12,144.60 is: 18,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.16 : 22,804.74 = 12,144.60 : x
  2. Step 2: Convert to fraction form
    15,203.16/22,804.74 = 12,144.60/x
  3. Step 3: Cross multiply
    15,203.16x = 22,804.74 × 12,144.60
  4. Step 4: Simplify right side
    15,203.16x = 276,954,445.40
  5. Step 5: Solve for x
    x = 276,954,445.40/15,203.16
  6. Step 6: Final answer
    x = 18,216.90

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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.