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Finding the Fourth Proportional to 70,762.39, 106,140.11 and 26,385.67

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Solution

The fourth proportional to 70,762.39, 106,140.11 and 26,385.67 is: 39,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,762.39 : 106,140.11 = 26,385.67 : x
  2. Step 2: Convert to fraction form
    70,762.39/106,140.11 = 26,385.67/x
  3. Step 3: Cross multiply
    70,762.39x = 106,140.11 × 26,385.67
  4. Step 4: Simplify right side
    70,762.39x = 2,800,577,518.95
  5. Step 5: Solve for x
    x = 2,800,577,518.95/70,762.39
  6. Step 6: Final answer
    x = 39,577.21

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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.