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Finding the Fourth Proportional to 65,000.40, 89,742.24 and 53,092.32

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Solution

The fourth proportional to 65,000.40, 89,742.24 and 53,092.32 is: 73,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.40 : 89,742.24 = 53,092.32 : x
  2. Step 2: Convert to fraction form
    65,000.40/89,742.24 = 53,092.32/x
  3. Step 3: Cross multiply
    65,000.40x = 89,742.24 × 53,092.32
  4. Step 4: Simplify right side
    65,000.40x = 4,764,623,723.60
  5. Step 5: Solve for x
    x = 4,764,623,723.60/65,000.40
  6. Step 6: Final answer
    x = 73,301.45

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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.