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Finding the Fourth Proportional to 4,967.36, 7,439.36 and 2,916.80

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Solution

The fourth proportional to 4,967.36, 7,439.36 and 2,916.80 is: 4,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,967.36 : 7,439.36 = 2,916.80 : x
  2. Step 2: Convert to fraction form
    4,967.36/7,439.36 = 2,916.80/x
  3. Step 3: Cross multiply
    4,967.36x = 7,439.36 × 2,916.80
  4. Step 4: Simplify right side
    4,967.36x = 21,699,125.25
  5. Step 5: Solve for x
    x = 21,699,125.25/4,967.36
  6. Step 6: Final answer
    x = 4,368.34

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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.