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Finding the Fourth Proportional to 15,957.20, 23,964.60 and 11,579.60

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Solution

The fourth proportional to 15,957.20, 23,964.60 and 11,579.60 is: 17,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.20 : 23,964.60 = 11,579.60 : x
  2. Step 2: Convert to fraction form
    15,957.20/23,964.60 = 11,579.60/x
  3. Step 3: Cross multiply
    15,957.20x = 23,964.60 × 11,579.60
  4. Step 4: Simplify right side
    15,957.20x = 277,500,482.16
  5. Step 5: Solve for x
    x = 277,500,482.16/15,957.20
  6. Step 6: Final answer
    x = 17,390.30

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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.