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Finding the Fourth Proportional to 9,312.93, 13,969.04 and 3,156.93

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Solution

The fourth proportional to 9,312.93, 13,969.04 and 3,156.93 is: 4,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.93 : 13,969.04 = 3,156.93 : x
  2. Step 2: Convert to fraction form
    9,312.93/13,969.04 = 3,156.93/x
  3. Step 3: Cross multiply
    9,312.93x = 13,969.04 × 3,156.93
  4. Step 4: Simplify right side
    9,312.93x = 44,099,265.66
  5. Step 5: Solve for x
    x = 44,099,265.66/9,312.93
  6. Step 6: Final answer
    x = 4,735.27

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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.