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Finding the Fourth Proportional to 12,963.52, 17,852.01 and 11,261.25

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Solution

The fourth proportional to 12,963.52, 17,852.01 and 11,261.25 is: 15,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.52 : 17,852.01 = 11,261.25 : x
  2. Step 2: Convert to fraction form
    12,963.52/17,852.01 = 11,261.25/x
  3. Step 3: Cross multiply
    12,963.52x = 17,852.01 × 11,261.25
  4. Step 4: Simplify right side
    12,963.52x = 201,035,975.77
  5. Step 5: Solve for x
    x = 201,035,975.77/12,963.52
  6. Step 6: Final answer
    x = 15,507.82

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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.