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Finding the Fourth Proportional to 19,482.17, 29,206.85 and 7,789.01

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Solution

The fourth proportional to 19,482.17, 29,206.85 and 7,789.01 is: 11,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.17 : 29,206.85 = 7,789.01 : x
  2. Step 2: Convert to fraction form
    19,482.17/29,206.85 = 7,789.01/x
  3. Step 3: Cross multiply
    19,482.17x = 29,206.85 × 7,789.01
  4. Step 4: Simplify right side
    19,482.17x = 227,492,261.74
  5. Step 5: Solve for x
    x = 227,492,261.74/19,482.17
  6. Step 6: Final answer
    x = 11,676.95

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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.