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Finding the Fourth Proportional to 4,681.93, 7,016.80 and 1,905.36

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Solution

The fourth proportional to 4,681.93, 7,016.80 and 1,905.36 is: 2,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,681.93 : 7,016.80 = 1,905.36 : x
  2. Step 2: Convert to fraction form
    4,681.93/7,016.80 = 1,905.36/x
  3. Step 3: Cross multiply
    4,681.93x = 7,016.80 × 1,905.36
  4. Step 4: Simplify right side
    4,681.93x = 13,369,530.05
  5. Step 5: Solve for x
    x = 13,369,530.05/4,681.93
  6. Step 6: Final answer
    x = 2,855.56

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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.