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Finding the Fourth Proportional to 35,643.20, 53,477.60 and 34,363.20

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Solution

The fourth proportional to 35,643.20, 53,477.60 and 34,363.20 is: 51,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,643.20 : 53,477.60 = 34,363.20 : x
  2. Step 2: Convert to fraction form
    35,643.20/53,477.60 = 34,363.20/x
  3. Step 3: Cross multiply
    35,643.20x = 53,477.60 × 34,363.20
  4. Step 4: Simplify right side
    35,643.20x = 1,837,661,464.32
  5. Step 5: Solve for x
    x = 1,837,661,464.32/35,643.20
  6. Step 6: Final answer
    x = 51,557.14

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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.