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Finding the Fourth Proportional to 15,798.36, 23,664.60 and 7,485.60

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Solution

The fourth proportional to 15,798.36, 23,664.60 and 7,485.60 is: 11,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.36 : 23,664.60 = 7,485.60 : x
  2. Step 2: Convert to fraction form
    15,798.36/23,664.60 = 7,485.60/x
  3. Step 3: Cross multiply
    15,798.36x = 23,664.60 × 7,485.60
  4. Step 4: Simplify right side
    15,798.36x = 177,143,729.76
  5. Step 5: Solve for x
    x = 177,143,729.76/15,798.36
  6. Step 6: Final answer
    x = 11,212.79

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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.