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Finding the Fourth Proportional to 18,157.66, 25,055.28 and 10,602.22

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Solution

The fourth proportional to 18,157.66, 25,055.28 and 10,602.22 is: 14,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.66 : 25,055.28 = 10,602.22 : x
  2. Step 2: Convert to fraction form
    18,157.66/25,055.28 = 10,602.22/x
  3. Step 3: Cross multiply
    18,157.66x = 25,055.28 × 10,602.22
  4. Step 4: Simplify right side
    18,157.66x = 265,641,590.72
  5. Step 5: Solve for x
    x = 265,641,590.72/18,157.66
  6. Step 6: Final answer
    x = 14,629.73

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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.