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Finding the Fourth Proportional to 70,074.54, 96,705.54 and 39,862.67

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Solution

The fourth proportional to 70,074.54, 96,705.54 and 39,862.67 is: 55,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.54 : 96,705.54 = 39,862.67 : x
  2. Step 2: Convert to fraction form
    70,074.54/96,705.54 = 39,862.67/x
  3. Step 3: Cross multiply
    70,074.54x = 96,705.54 × 39,862.67
  4. Step 4: Simplify right side
    70,074.54x = 3,854,940,544.66
  5. Step 5: Solve for x
    x = 3,854,940,544.66/70,074.54
  6. Step 6: Final answer
    x = 55,012.00

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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.