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Finding the Fourth Proportional to 18,258.59, 25,190.93 and 10,190.93

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Solution

The fourth proportional to 18,258.59, 25,190.93 and 10,190.93 is: 14,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.59 : 25,190.93 = 10,190.93 : x
  2. Step 2: Convert to fraction form
    18,258.59/25,190.93 = 10,190.93/x
  3. Step 3: Cross multiply
    18,258.59x = 25,190.93 × 10,190.93
  4. Step 4: Simplify right side
    18,258.59x = 256,718,903.79
  5. Step 5: Solve for x
    x = 256,718,903.79/18,258.59
  6. Step 6: Final answer
    x = 14,060.17

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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.