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Finding the Fourth Proportional to 18,477.64, 25,499.10 and 10,094.20

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Solution

The fourth proportional to 18,477.64, 25,499.10 and 10,094.20 is: 13,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.64 : 25,499.10 = 10,094.20 : x
  2. Step 2: Convert to fraction form
    18,477.64/25,499.10 = 10,094.20/x
  3. Step 3: Cross multiply
    18,477.64x = 25,499.10 × 10,094.20
  4. Step 4: Simplify right side
    18,477.64x = 257,393,015.22
  5. Step 5: Solve for x
    x = 257,393,015.22/18,477.64
  6. Step 6: Final answer
    x = 13,929.97

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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.