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Finding the Fourth Proportional to 8,642.04, 11,926.62 and 4,916.04

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Solution

The fourth proportional to 8,642.04, 11,926.62 and 4,916.04 is: 6,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.04 : 11,926.62 = 4,916.04 : x
  2. Step 2: Convert to fraction form
    8,642.04/11,926.62 = 4,916.04/x
  3. Step 3: Cross multiply
    8,642.04x = 11,926.62 × 4,916.04
  4. Step 4: Simplify right side
    8,642.04x = 58,631,740.98
  5. Step 5: Solve for x
    x = 58,631,740.98/8,642.04
  6. Step 6: Final answer
    x = 6,784.48

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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.