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Finding the Fourth Proportional to 4,287.16, 5,929.50 and 4,068.64

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Solution

The fourth proportional to 4,287.16, 5,929.50 and 4,068.64 is: 5,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.16 : 5,929.50 = 4,068.64 : x
  2. Step 2: Convert to fraction form
    4,287.16/5,929.50 = 4,068.64/x
  3. Step 3: Cross multiply
    4,287.16x = 5,929.50 × 4,068.64
  4. Step 4: Simplify right side
    4,287.16x = 24,125,000.88
  5. Step 5: Solve for x
    x = 24,125,000.88/4,287.16
  6. Step 6: Final answer
    x = 5,627.27

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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.