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Finding the Fourth Proportional to 38,102.40, 57,153.60 and 15,908.40

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Solution

The fourth proportional to 38,102.40, 57,153.60 and 15,908.40 is: 23,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,102.40 : 57,153.60 = 15,908.40 : x
  2. Step 2: Convert to fraction form
    38,102.40/57,153.60 = 15,908.40/x
  3. Step 3: Cross multiply
    38,102.40x = 57,153.60 × 15,908.40
  4. Step 4: Simplify right side
    38,102.40x = 909,222,330.24
  5. Step 5: Solve for x
    x = 909,222,330.24/38,102.40
  6. Step 6: Final answer
    x = 23,862.60

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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.