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Finding the Fourth Proportional to 53,396.32, 73,689 and 35,460.40

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Solution

The fourth proportional to 53,396.32, 73,689 and 35,460.40 is: 48,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,396.32 : 73,689 = 35,460.40 : x
  2. Step 2: Convert to fraction form
    53,396.32/73,689 = 35,460.40/x
  3. Step 3: Cross multiply
    53,396.32x = 73,689 × 35,460.40
  4. Step 4: Simplify right side
    53,396.32x = 2,613,041,415.60
  5. Step 5: Solve for x
    x = 2,613,041,415.60/53,396.32
  6. Step 6: Final answer
    x = 48,936.73

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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.