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Finding the Fourth Proportional to 70,960.88, 97,926.68 and 39,130.92

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Solution

The fourth proportional to 70,960.88, 97,926.68 and 39,130.92 is: 54,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,960.88 : 97,926.68 = 39,130.92 : x
  2. Step 2: Convert to fraction form
    70,960.88/97,926.68 = 39,130.92/x
  3. Step 3: Cross multiply
    70,960.88x = 97,926.68 × 39,130.92
  4. Step 4: Simplify right side
    70,960.88x = 3,831,961,080.95
  5. Step 5: Solve for x
    x = 3,831,961,080.95/70,960.88
  6. Step 6: Final answer
    x = 54,001.04

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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.