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Finding the Fourth Proportional to 5,880.96, 8,788.80 and 3,916.80

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Solution

The fourth proportional to 5,880.96, 8,788.80 and 3,916.80 is: 5,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.96 : 8,788.80 = 3,916.80 : x
  2. Step 2: Convert to fraction form
    5,880.96/8,788.80 = 3,916.80/x
  3. Step 3: Cross multiply
    5,880.96x = 8,788.80 × 3,916.80
  4. Step 4: Simplify right side
    5,880.96x = 34,423,971.84
  5. Step 5: Solve for x
    x = 34,423,971.84/5,880.96
  6. Step 6: Final answer
    x = 5,853.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.