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Finding the Fourth Proportional to 70,959.95, 97,922.93 and 39,126.80

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Solution

The fourth proportional to 70,959.95, 97,922.93 and 39,126.80 is: 53,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,959.95 : 97,922.93 = 39,126.80 : x
  2. Step 2: Convert to fraction form
    70,959.95/97,922.93 = 39,126.80/x
  3. Step 3: Cross multiply
    70,959.95x = 97,922.93 × 39,126.80
  4. Step 4: Simplify right side
    70,959.95x = 3,831,410,395.88
  5. Step 5: Solve for x
    x = 3,831,410,395.88/70,959.95
  6. Step 6: Final answer
    x = 53,993.98

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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.