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Finding the Fourth Proportional to 71,004.35, 97,984.36 and 39,173.24

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Solution

The fourth proportional to 71,004.35, 97,984.36 and 39,173.24 is: 54,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,004.35 : 97,984.36 = 39,173.24 : x
  2. Step 2: Convert to fraction form
    71,004.35/97,984.36 = 39,173.24/x
  3. Step 3: Cross multiply
    71,004.35x = 97,984.36 × 39,173.24
  4. Step 4: Simplify right side
    71,004.35x = 3,838,364,850.53
  5. Step 5: Solve for x
    x = 3,838,364,850.53/71,004.35
  6. Step 6: Final answer
    x = 54,058.16

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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.