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Finding the Fourth Proportional to 35,772.80, 53,702.40 and 35,513.60

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Solution

The fourth proportional to 35,772.80, 53,702.40 and 35,513.60 is: 53,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,772.80 : 53,702.40 = 35,513.60 : x
  2. Step 2: Convert to fraction form
    35,772.80/53,702.40 = 35,513.60/x
  3. Step 3: Cross multiply
    35,772.80x = 53,702.40 × 35,513.60
  4. Step 4: Simplify right side
    35,772.80x = 1,907,165,552.64
  5. Step 5: Solve for x
    x = 1,907,165,552.64/35,772.80
  6. Step 6: Final answer
    x = 53,313.29

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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.