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Finding the Fourth Proportional to 15,459.60, 23,196.60 and 11,571.60

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Solution

The fourth proportional to 15,459.60, 23,196.60 and 11,571.60 is: 17,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.60 : 23,196.60 = 11,571.60 : x
  2. Step 2: Convert to fraction form
    15,459.60/23,196.60 = 11,571.60/x
  3. Step 3: Cross multiply
    15,459.60x = 23,196.60 × 11,571.60
  4. Step 4: Simplify right side
    15,459.60x = 268,421,776.56
  5. Step 5: Solve for x
    x = 268,421,776.56/15,459.60
  6. Step 6: Final answer
    x = 17,362.79

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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.