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Finding the Fourth Proportional to 9,639.61, 14,459.26 and 3,065.70

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Solution

The fourth proportional to 9,639.61, 14,459.26 and 3,065.70 is: 4,598.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.61 : 14,459.26 = 3,065.70 : x
  2. Step 2: Convert to fraction form
    9,639.61/14,459.26 = 3,065.70/x
  3. Step 3: Cross multiply
    9,639.61x = 14,459.26 × 3,065.70
  4. Step 4: Simplify right side
    9,639.61x = 44,327,724.35
  5. Step 5: Solve for x
    x = 44,327,724.35/9,639.61
  6. Step 6: Final answer
    x = 4,598.50

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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.