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Finding the Fourth Proportional to 71,073.01, 98,080.08 and 39,242.13

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Solution

The fourth proportional to 71,073.01, 98,080.08 and 39,242.13 is: 54,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,073.01 : 98,080.08 = 39,242.13 : x
  2. Step 2: Convert to fraction form
    71,073.01/98,080.08 = 39,242.13/x
  3. Step 3: Cross multiply
    71,073.01x = 98,080.08 × 39,242.13
  4. Step 4: Simplify right side
    71,073.01x = 3,848,871,249.77
  5. Step 5: Solve for x
    x = 3,848,871,249.77/71,073.01
  6. Step 6: Final answer
    x = 54,153.77

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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.