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Finding the Fourth Proportional to 19,903.84, 29,850.95 and 5,860.05

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Solution

The fourth proportional to 19,903.84, 29,850.95 and 5,860.05 is: 8,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.84 : 29,850.95 = 5,860.05 : x
  2. Step 2: Convert to fraction form
    19,903.84/29,850.95 = 5,860.05/x
  3. Step 3: Cross multiply
    19,903.84x = 29,850.95 × 5,860.05
  4. Step 4: Simplify right side
    19,903.84x = 174,927,962.26
  5. Step 5: Solve for x
    x = 174,927,962.26/19,903.84
  6. Step 6: Final answer
    x = 8,788.66

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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.