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Finding the Fourth Proportional to 70,790.89, 106,153.62 and 26,405.77

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Solution

The fourth proportional to 70,790.89, 106,153.62 and 26,405.77 is: 39,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.89 : 106,153.62 = 26,405.77 : x
  2. Step 2: Convert to fraction form
    70,790.89/106,153.62 = 26,405.77/x
  3. Step 3: Cross multiply
    70,790.89x = 106,153.62 × 26,405.77
  4. Step 4: Simplify right side
    70,790.89x = 2,803,068,074.39
  5. Step 5: Solve for x
    x = 2,803,068,074.39/70,790.89
  6. Step 6: Final answer
    x = 39,596.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.