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Finding the Fourth Proportional to 35,640.87, 53,473.52 and 13,460.64

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Solution

The fourth proportional to 35,640.87, 53,473.52 and 13,460.64 is: 20,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.87 : 53,473.52 = 13,460.64 : x
  2. Step 2: Convert to fraction form
    35,640.87/53,473.52 = 13,460.64/x
  3. Step 3: Cross multiply
    35,640.87x = 53,473.52 × 13,460.64
  4. Step 4: Simplify right side
    35,640.87x = 719,787,802.25
  5. Step 5: Solve for x
    x = 719,787,802.25/35,640.87
  6. Step 6: Final answer
    x = 20,195.57

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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.