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Finding the Fourth Proportional to 6,656.76, 9,985.18 and 2,958.12

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Solution

The fourth proportional to 6,656.76, 9,985.18 and 2,958.12 is: 4,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.76 : 9,985.18 = 2,958.12 : x
  2. Step 2: Convert to fraction form
    6,656.76/9,985.18 = 2,958.12/x
  3. Step 3: Cross multiply
    6,656.76x = 9,985.18 × 2,958.12
  4. Step 4: Simplify right side
    6,656.76x = 29,537,360.66
  5. Step 5: Solve for x
    x = 29,537,360.66/6,656.76
  6. Step 6: Final answer
    x = 4,437.20

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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.