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Finding the Fourth Proportional to 18,699.66, 25,807.62 and 10,741.74

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Solution

The fourth proportional to 18,699.66, 25,807.62 and 10,741.74 is: 14,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.66 : 25,807.62 = 10,741.74 : x
  2. Step 2: Convert to fraction form
    18,699.66/25,807.62 = 10,741.74/x
  3. Step 3: Cross multiply
    18,699.66x = 25,807.62 × 10,741.74
  4. Step 4: Simplify right side
    18,699.66x = 277,218,744.06
  5. Step 5: Solve for x
    x = 277,218,744.06/18,699.66
  6. Step 6: Final answer
    x = 14,824.80

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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.