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Finding the Fourth Proportional to 6,207.12, 8,573.16 and 4,780.68

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Solution

The fourth proportional to 6,207.12, 8,573.16 and 4,780.68 is: 6,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.12 : 8,573.16 = 4,780.68 : x
  2. Step 2: Convert to fraction form
    6,207.12/8,573.16 = 4,780.68/x
  3. Step 3: Cross multiply
    6,207.12x = 8,573.16 × 4,780.68
  4. Step 4: Simplify right side
    6,207.12x = 40,985,534.55
  5. Step 5: Solve for x
    x = 40,985,534.55/6,207.12
  6. Step 6: Final answer
    x = 6,602.99

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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.