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Finding the Fourth Proportional to 12,361.76, 17,059.28 and 6,773.28

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Solution

The fourth proportional to 12,361.76, 17,059.28 and 6,773.28 is: 9,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.76 : 17,059.28 = 6,773.28 : x
  2. Step 2: Convert to fraction form
    12,361.76/17,059.28 = 6,773.28/x
  3. Step 3: Cross multiply
    12,361.76x = 17,059.28 × 6,773.28
  4. Step 4: Simplify right side
    12,361.76x = 115,547,280.04
  5. Step 5: Solve for x
    x = 115,547,280.04/12,361.76
  6. Step 6: Final answer
    x = 9,347.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.