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Finding the Fourth Proportional to 27,907.80, 41,856.90 and 10,368.60

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Solution

The fourth proportional to 27,907.80, 41,856.90 and 10,368.60 is: 15,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.80 : 41,856.90 = 10,368.60 : x
  2. Step 2: Convert to fraction form
    27,907.80/41,856.90 = 10,368.60/x
  3. Step 3: Cross multiply
    27,907.80x = 41,856.90 × 10,368.60
  4. Step 4: Simplify right side
    27,907.80x = 433,997,453.34
  5. Step 5: Solve for x
    x = 433,997,453.34/27,907.80
  6. Step 6: Final answer
    x = 15,551.12

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1.5x scale

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.