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Finding the Fourth Proportional to 64,519.85, 89,034.51 and 35,841.50

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Solution

The fourth proportional to 64,519.85, 89,034.51 and 35,841.50 is: 49,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,519.85 : 89,034.51 = 35,841.50 : x
  2. Step 2: Convert to fraction form
    64,519.85/89,034.51 = 35,841.50/x
  3. Step 3: Cross multiply
    64,519.85x = 89,034.51 × 35,841.50
  4. Step 4: Simplify right side
    64,519.85x = 3,191,129,944.99
  5. Step 5: Solve for x
    x = 3,191,129,944.99/64,519.85
  6. Step 6: Final answer
    x = 49,459.67

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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.