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Finding the Fourth Proportional to 13,563.45, 19,014.75 and 13,563.45

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Solution

The fourth proportional to 13,563.45, 19,014.75 and 13,563.45 is: 19,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.45 : 19,014.75 = 13,563.45 : x
  2. Step 2: Convert to fraction form
    13,563.45/19,014.75 = 13,563.45/x
  3. Step 3: Cross multiply
    13,563.45x = 19,014.75 × 13,563.45
  4. Step 4: Simplify right side
    13,563.45x = 257,905,610.89
  5. Step 5: Solve for x
    x = 257,905,610.89/13,563.45
  6. Step 6: Final answer
    x = 19,014.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.