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Finding the Fourth Proportional to 16,907.52, 25,368.56 and 9,114.50

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Solution

The fourth proportional to 16,907.52, 25,368.56 and 9,114.50 is: 13,675.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.52 : 25,368.56 = 9,114.50 : x
  2. Step 2: Convert to fraction form
    16,907.52/25,368.56 = 9,114.50/x
  3. Step 3: Cross multiply
    16,907.52x = 25,368.56 × 9,114.50
  4. Step 4: Simplify right side
    16,907.52x = 231,221,740.12
  5. Step 5: Solve for x
    x = 231,221,740.12/16,907.52
  6. Step 6: Final answer
    x = 13,675.67

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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.