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Finding the Fourth Proportional to 13,955.78, 19,264.04 and 9,241.58

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Solution

The fourth proportional to 13,955.78, 19,264.04 and 9,241.58 is: 12,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.78 : 19,264.04 = 9,241.58 : x
  2. Step 2: Convert to fraction form
    13,955.78/19,264.04 = 9,241.58/x
  3. Step 3: Cross multiply
    13,955.78x = 19,264.04 × 9,241.58
  4. Step 4: Simplify right side
    13,955.78x = 178,030,166.78
  5. Step 5: Solve for x
    x = 178,030,166.78/13,955.78
  6. Step 6: Final answer
    x = 12,756.73

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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.