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Finding the Fourth Proportional to 5,916.40, 8,884.20 and 4,284.40

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Solution

The fourth proportional to 5,916.40, 8,884.20 and 4,284.40 is: 6,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,916.40 : 8,884.20 = 4,284.40 : x
  2. Step 2: Convert to fraction form
    5,916.40/8,884.20 = 4,284.40/x
  3. Step 3: Cross multiply
    5,916.40x = 8,884.20 × 4,284.40
  4. Step 4: Simplify right side
    5,916.40x = 38,063,466.48
  5. Step 5: Solve for x
    x = 38,063,466.48/5,916.40
  6. Step 6: Final answer
    x = 6,433.55

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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.