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Finding the Fourth Proportional to 39,657.54, 59,509.54 and 15,961.40

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Solution

The fourth proportional to 39,657.54, 59,509.54 and 15,961.40 is: 23,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.54 : 59,509.54 = 15,961.40 : x
  2. Step 2: Convert to fraction form
    39,657.54/59,509.54 = 15,961.40/x
  3. Step 3: Cross multiply
    39,657.54x = 59,509.54 × 15,961.40
  4. Step 4: Simplify right side
    39,657.54x = 949,855,517.32
  5. Step 5: Solve for x
    x = 949,855,517.32/39,657.54
  6. Step 6: Final answer
    x = 23,951.45

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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.