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Finding the Fourth Proportional to 9,985.26, 14,978.14 and 3,059.76

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Solution

The fourth proportional to 9,985.26, 14,978.14 and 3,059.76 is: 4,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.26 : 14,978.14 = 3,059.76 : x
  2. Step 2: Convert to fraction form
    9,985.26/14,978.14 = 3,059.76/x
  3. Step 3: Cross multiply
    9,985.26x = 14,978.14 × 3,059.76
  4. Step 4: Simplify right side
    9,985.26x = 45,829,513.65
  5. Step 5: Solve for x
    x = 45,829,513.65/9,985.26
  6. Step 6: Final answer
    x = 4,589.72

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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.