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Finding the Fourth Proportional to 9,312, 13,968.84 and 2,386.56

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Solution

The fourth proportional to 9,312, 13,968.84 and 2,386.56 is: 3,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312 : 13,968.84 = 2,386.56 : x
  2. Step 2: Convert to fraction form
    9,312/13,968.84 = 2,386.56/x
  3. Step 3: Cross multiply
    9,312x = 13,968.84 × 2,386.56
  4. Step 4: Simplify right side
    9,312x = 33,337,474.79
  5. Step 5: Solve for x
    x = 33,337,474.79/9,312
  6. Step 6: Final answer
    x = 3,580.06

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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.