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Finding the Fourth Proportional to 8,913.58, 12,302.03 and 5,136.02

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Solution

The fourth proportional to 8,913.58, 12,302.03 and 5,136.02 is: 7,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.58 : 12,302.03 = 5,136.02 : x
  2. Step 2: Convert to fraction form
    8,913.58/12,302.03 = 5,136.02/x
  3. Step 3: Cross multiply
    8,913.58x = 12,302.03 × 5,136.02
  4. Step 4: Simplify right side
    8,913.58x = 63,183,384.93
  5. Step 5: Solve for x
    x = 63,183,384.93/8,913.58
  6. Step 6: Final answer
    x = 7,088.44

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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.