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Finding the Fourth Proportional to 18,435.24, 25,440.90 and 10,477.64

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Solution

The fourth proportional to 18,435.24, 25,440.90 and 10,477.64 is: 14,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.24 : 25,440.90 = 10,477.64 : x
  2. Step 2: Convert to fraction form
    18,435.24/25,440.90 = 10,477.64/x
  3. Step 3: Cross multiply
    18,435.24x = 25,440.90 × 10,477.64
  4. Step 4: Simplify right side
    18,435.24x = 266,560,591.48
  5. Step 5: Solve for x
    x = 266,560,591.48/18,435.24
  6. Step 6: Final answer
    x = 14,459.30

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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.