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Finding the Fourth Proportional to 18,333.66, 25,300.45 and 9,950.16

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Solution

The fourth proportional to 18,333.66, 25,300.45 and 9,950.16 is: 13,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.66 : 25,300.45 = 9,950.16 : x
  2. Step 2: Convert to fraction form
    18,333.66/25,300.45 = 9,950.16/x
  3. Step 3: Cross multiply
    18,333.66x = 25,300.45 × 9,950.16
  4. Step 4: Simplify right side
    18,333.66x = 251,743,349.32
  5. Step 5: Solve for x
    x = 251,743,349.32/18,333.66
  6. Step 6: Final answer
    x = 13,731.21

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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.