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Finding the Fourth Proportional to 38,101.40, 57,152.10 and 15,907.40

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Solution

The fourth proportional to 38,101.40, 57,152.10 and 15,907.40 is: 23,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,101.40 : 57,152.10 = 15,907.40 : x
  2. Step 2: Convert to fraction form
    38,101.40/57,152.10 = 15,907.40/x
  3. Step 3: Cross multiply
    38,101.40x = 57,152.10 × 15,907.40
  4. Step 4: Simplify right side
    38,101.40x = 909,141,315.54
  5. Step 5: Solve for x
    x = 909,141,315.54/38,101.40
  6. Step 6: Final answer
    x = 23,861.10

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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.