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Finding the Fourth Proportional to 6,368.61, 8,792.34 and 4,243.58

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Solution

The fourth proportional to 6,368.61, 8,792.34 and 4,243.58 is: 5,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.61 : 8,792.34 = 4,243.58 : x
  2. Step 2: Convert to fraction form
    6,368.61/8,792.34 = 4,243.58/x
  3. Step 3: Cross multiply
    6,368.61x = 8,792.34 × 4,243.58
  4. Step 4: Simplify right side
    6,368.61x = 37,310,998.18
  5. Step 5: Solve for x
    x = 37,310,998.18/6,368.61
  6. Step 6: Final answer
    x = 5,858.58

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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.