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Finding the Fourth Proportional to 19,886.04, 29,787.66 and 9,365.04

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Solution

The fourth proportional to 19,886.04, 29,787.66 and 9,365.04 is: 14,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.04 : 29,787.66 = 9,365.04 : x
  2. Step 2: Convert to fraction form
    19,886.04/29,787.66 = 9,365.04/x
  3. Step 3: Cross multiply
    19,886.04x = 29,787.66 × 9,365.04
  4. Step 4: Simplify right side
    19,886.04x = 278,962,627.41
  5. Step 5: Solve for x
    x = 278,962,627.41/19,886.04
  6. Step 6: Final answer
    x = 14,028.06

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1.5x scale

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.