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Finding the Fourth Proportional to 7,893.63, 10,893.51 and 4,356.72

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Solution

The fourth proportional to 7,893.63, 10,893.51 and 4,356.72 is: 6,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.63 : 10,893.51 = 4,356.72 : x
  2. Step 2: Convert to fraction form
    7,893.63/10,893.51 = 4,356.72/x
  3. Step 3: Cross multiply
    7,893.63x = 10,893.51 × 4,356.72
  4. Step 4: Simplify right side
    7,893.63x = 47,459,972.89
  5. Step 5: Solve for x
    x = 47,459,972.89/7,893.63
  6. Step 6: Final answer
    x = 6,012.44

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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.