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Finding the Fourth Proportional to 18,478.16, 25,499.94 and 10,094.84

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Solution

The fourth proportional to 18,478.16, 25,499.94 and 10,094.84 is: 13,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.16 : 25,499.94 = 10,094.84 : x
  2. Step 2: Convert to fraction form
    18,478.16/25,499.94 = 10,094.84/x
  3. Step 3: Cross multiply
    18,478.16x = 25,499.94 × 10,094.84
  4. Step 4: Simplify right side
    18,478.16x = 257,417,814.31
  5. Step 5: Solve for x
    x = 257,417,814.31/18,478.16
  6. Step 6: Final answer
    x = 13,930.92

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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.