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Finding the Fourth Proportional to 70,303.41, 105,453.90 and 17,711.73

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Solution

The fourth proportional to 70,303.41, 105,453.90 and 17,711.73 is: 26,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,303.41 : 105,453.90 = 17,711.73 : x
  2. Step 2: Convert to fraction form
    70,303.41/105,453.90 = 17,711.73/x
  3. Step 3: Cross multiply
    70,303.41x = 105,453.90 × 17,711.73
  4. Step 4: Simplify right side
    70,303.41x = 1,867,771,004.25
  5. Step 5: Solve for x
    x = 1,867,771,004.25/70,303.41
  6. Step 6: Final answer
    x = 26,567.29

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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.