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Finding the Fourth Proportional to 60,861.58, 83,964 and 36,984.40

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Solution

The fourth proportional to 60,861.58, 83,964 and 36,984.40 is: 51,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,861.58 : 83,964 = 36,984.40 : x
  2. Step 2: Convert to fraction form
    60,861.58/83,964 = 36,984.40/x
  3. Step 3: Cross multiply
    60,861.58x = 83,964 × 36,984.40
  4. Step 4: Simplify right side
    60,861.58x = 3,105,358,161.60
  5. Step 5: Solve for x
    x = 3,105,358,161.60/60,861.58
  6. Step 6: Final answer
    x = 51,023.29

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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.