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Finding the Fourth Proportional to 65,030.87, 97,536.13 and 20,651.78

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Solution

The fourth proportional to 65,030.87, 97,536.13 and 20,651.78 is: 30,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,030.87 : 97,536.13 = 20,651.78 : x
  2. Step 2: Convert to fraction form
    65,030.87/97,536.13 = 20,651.78/x
  3. Step 3: Cross multiply
    65,030.87x = 97,536.13 × 20,651.78
  4. Step 4: Simplify right side
    65,030.87x = 2,014,294,698.81
  5. Step 5: Solve for x
    x = 2,014,294,698.81/65,030.87
  6. Step 6: Final answer
    x = 30,974.44

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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.