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Finding the Fourth Proportional to 10,907.10, 15,299.10 and 10,907.10

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Solution

The fourth proportional to 10,907.10, 15,299.10 and 10,907.10 is: 15,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.10 : 15,299.10 = 10,907.10 : x
  2. Step 2: Convert to fraction form
    10,907.10/15,299.10 = 10,907.10/x
  3. Step 3: Cross multiply
    10,907.10x = 15,299.10 × 10,907.10
  4. Step 4: Simplify right side
    10,907.10x = 166,868,813.61
  5. Step 5: Solve for x
    x = 166,868,813.61/10,907.10
  6. Step 6: Final answer
    x = 15,299.10

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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.