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Finding the Fourth Proportional to 53,203.91, 73,421.91 and 29,331.44

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Solution

The fourth proportional to 53,203.91, 73,421.91 and 29,331.44 is: 40,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,203.91 : 73,421.91 = 29,331.44 : x
  2. Step 2: Convert to fraction form
    53,203.91/73,421.91 = 29,331.44/x
  3. Step 3: Cross multiply
    53,203.91x = 73,421.91 × 29,331.44
  4. Step 4: Simplify right side
    53,203.91x = 2,153,570,462.57
  5. Step 5: Solve for x
    x = 2,153,570,462.57/53,203.91
  6. Step 6: Final answer
    x = 40,477.67

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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.