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Finding the Fourth Proportional to 12,551.64, 17,322 and 7,246.80

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Solution

The fourth proportional to 12,551.64, 17,322 and 7,246.80 is: 10,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.64 : 17,322 = 7,246.80 : x
  2. Step 2: Convert to fraction form
    12,551.64/17,322 = 7,246.80/x
  3. Step 3: Cross multiply
    12,551.64x = 17,322 × 7,246.80
  4. Step 4: Simplify right side
    12,551.64x = 125,529,069.60
  5. Step 5: Solve for x
    x = 125,529,069.60/12,551.64
  6. Step 6: Final answer
    x = 10,001.01

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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.