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Finding the Fourth Proportional to 5,915.60, 8,166.60 and 4,264.40

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Solution

The fourth proportional to 5,915.60, 8,166.60 and 4,264.40 is: 5,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.60 : 8,166.60 = 4,264.40 : x
  2. Step 2: Convert to fraction form
    5,915.60/8,166.60 = 4,264.40/x
  3. Step 3: Cross multiply
    5,915.60x = 8,166.60 × 4,264.40
  4. Step 4: Simplify right side
    5,915.60x = 34,825,649.04
  5. Step 5: Solve for x
    x = 34,825,649.04/5,915.60
  6. Step 6: Final answer
    x = 5,887.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.