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Finding the Fourth Proportional to 19,646.58, 29,469.08 and 4,855.11

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Solution

The fourth proportional to 19,646.58, 29,469.08 and 4,855.11 is: 7,282.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.58 : 29,469.08 = 4,855.11 : x
  2. Step 2: Convert to fraction form
    19,646.58/29,469.08 = 4,855.11/x
  3. Step 3: Cross multiply
    19,646.58x = 29,469.08 × 4,855.11
  4. Step 4: Simplify right side
    19,646.58x = 143,075,600.72
  5. Step 5: Solve for x
    x = 143,075,600.72/19,646.58
  6. Step 6: Final answer
    x = 7,282.47

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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.