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Finding the Fourth Proportional to 4,627.86, 6,941.90 and 1,507.87

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Solution

The fourth proportional to 4,627.86, 6,941.90 and 1,507.87 is: 2,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.86 : 6,941.90 = 1,507.87 : x
  2. Step 2: Convert to fraction form
    4,627.86/6,941.90 = 1,507.87/x
  3. Step 3: Cross multiply
    4,627.86x = 6,941.90 × 1,507.87
  4. Step 4: Simplify right side
    4,627.86x = 10,467,482.75
  5. Step 5: Solve for x
    x = 10,467,482.75/4,627.86
  6. Step 6: Final answer
    x = 2,261.84

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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.