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Finding the Fourth Proportional to 17,810.41, 26,705.74 and 7,287.81

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Solution

The fourth proportional to 17,810.41, 26,705.74 and 7,287.81 is: 10,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,810.41 : 26,705.74 = 7,287.81 : x
  2. Step 2: Convert to fraction form
    17,810.41/26,705.74 = 7,287.81/x
  3. Step 3: Cross multiply
    17,810.41x = 26,705.74 × 7,287.81
  4. Step 4: Simplify right side
    17,810.41x = 194,626,359.03
  5. Step 5: Solve for x
    x = 194,626,359.03/17,810.41
  6. Step 6: Final answer
    x = 10,927.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.