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Finding the Fourth Proportional to 18,754.40, 25,886.04 and 10,797.56

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Solution

The fourth proportional to 18,754.40, 25,886.04 and 10,797.56 is: 14,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.40 : 25,886.04 = 10,797.56 : x
  2. Step 2: Convert to fraction form
    18,754.40/25,886.04 = 10,797.56/x
  3. Step 3: Cross multiply
    18,754.40x = 25,886.04 × 10,797.56
  4. Step 4: Simplify right side
    18,754.40x = 279,506,070.06
  5. Step 5: Solve for x
    x = 279,506,070.06/18,754.40
  6. Step 6: Final answer
    x = 14,903.49

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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.