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Finding the Fourth Proportional to 18,697.74, 25,802.90 and 10,741.51

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Solution

The fourth proportional to 18,697.74, 25,802.90 and 10,741.51 is: 14,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.74 : 25,802.90 = 10,741.51 : x
  2. Step 2: Convert to fraction form
    18,697.74/25,802.90 = 10,741.51/x
  3. Step 3: Cross multiply
    18,697.74x = 25,802.90 × 10,741.51
  4. Step 4: Simplify right side
    18,697.74x = 277,162,108.38
  5. Step 5: Solve for x
    x = 277,162,108.38/18,697.74
  6. Step 6: Final answer
    x = 14,823.29

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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.