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Finding the Fourth Proportional to 17,935.76, 24,750.60 and 9,978.32

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Solution

The fourth proportional to 17,935.76, 24,750.60 and 9,978.32 is: 13,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,935.76 : 24,750.60 = 9,978.32 : x
  2. Step 2: Convert to fraction form
    17,935.76/24,750.60 = 9,978.32/x
  3. Step 3: Cross multiply
    17,935.76x = 24,750.60 × 9,978.32
  4. Step 4: Simplify right side
    17,935.76x = 246,969,406.99
  5. Step 5: Solve for x
    x = 246,969,406.99/17,935.76
  6. Step 6: Final answer
    x = 13,769.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.