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Finding the Fourth Proportional to 53,969.62, 74,483.43 and 40,333.98

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Solution

The fourth proportional to 53,969.62, 74,483.43 and 40,333.98 is: 55,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,969.62 : 74,483.43 = 40,333.98 : x
  2. Step 2: Convert to fraction form
    53,969.62/74,483.43 = 40,333.98/x
  3. Step 3: Cross multiply
    53,969.62x = 74,483.43 × 40,333.98
  4. Step 4: Simplify right side
    53,969.62x = 3,004,213,175.95
  5. Step 5: Solve for x
    x = 3,004,213,175.95/53,969.62
  6. Step 6: Final answer
    x = 55,664.89

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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.