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Finding the Fourth Proportional to 66,655.70, 99,983.64 and 26,692.67

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Solution

The fourth proportional to 66,655.70, 99,983.64 and 26,692.67 is: 40,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.70 : 99,983.64 = 26,692.67 : x
  2. Step 2: Convert to fraction form
    66,655.70/99,983.64 = 26,692.67/x
  3. Step 3: Cross multiply
    66,655.70x = 99,983.64 × 26,692.67
  4. Step 4: Simplify right side
    66,655.70x = 2,668,830,557.88
  5. Step 5: Solve for x
    x = 2,668,830,557.88/66,655.70
  6. Step 6: Final answer
    x = 40,039.05

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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.