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Finding the Fourth Proportional to 9,659.43, 14,486.07 and 4,977.99

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Solution

The fourth proportional to 9,659.43, 14,486.07 and 4,977.99 is: 7,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659.43 : 14,486.07 = 4,977.99 : x
  2. Step 2: Convert to fraction form
    9,659.43/14,486.07 = 4,977.99/x
  3. Step 3: Cross multiply
    9,659.43x = 14,486.07 × 4,977.99
  4. Step 4: Simplify right side
    9,659.43x = 72,111,511.60
  5. Step 5: Solve for x
    x = 72,111,511.60/9,659.43
  6. Step 6: Final answer
    x = 7,465.40

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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.