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Finding the Fourth Proportional to 71,303.48, 98,399.58 and 39,472.94

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Solution

The fourth proportional to 71,303.48, 98,399.58 and 39,472.94 is: 54,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,303.48 : 98,399.58 = 39,472.94 : x
  2. Step 2: Convert to fraction form
    71,303.48/98,399.58 = 39,472.94/x
  3. Step 3: Cross multiply
    71,303.48x = 98,399.58 × 39,472.94
  4. Step 4: Simplify right side
    71,303.48x = 3,884,120,717.37
  5. Step 5: Solve for x
    x = 3,884,120,717.37/71,303.48
  6. Step 6: Final answer
    x = 54,473.09

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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.