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Finding the Fourth Proportional to 65,874.63, 90,907.01 and 37,580.32

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Solution

The fourth proportional to 65,874.63, 90,907.01 and 37,580.32 is: 51,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,874.63 : 90,907.01 = 37,580.32 : x
  2. Step 2: Convert to fraction form
    65,874.63/90,907.01 = 37,580.32/x
  3. Step 3: Cross multiply
    65,874.63x = 90,907.01 × 37,580.32
  4. Step 4: Simplify right side
    65,874.63x = 3,416,314,592.70
  5. Step 5: Solve for x
    x = 3,416,314,592.70/65,874.63
  6. Step 6: Final answer
    x = 51,860.85

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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.