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Finding the Fourth Proportional to 10,907.61, 15,059.75 and 7,369.53

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Solution

The fourth proportional to 10,907.61, 15,059.75 and 7,369.53 is: 10,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.61 : 15,059.75 = 7,369.53 : x
  2. Step 2: Convert to fraction form
    10,907.61/15,059.75 = 7,369.53/x
  3. Step 3: Cross multiply
    10,907.61x = 15,059.75 × 7,369.53
  4. Step 4: Simplify right side
    10,907.61x = 110,983,279.42
  5. Step 5: Solve for x
    x = 110,983,279.42/10,907.61
  6. Step 6: Final answer
    x = 10,174.85

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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.