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Finding the Fourth Proportional to 35,907.30, 53,827.74 and 18,338.40

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Solution

The fourth proportional to 35,907.30, 53,827.74 and 18,338.40 is: 27,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,907.30 : 53,827.74 = 18,338.40 : x
  2. Step 2: Convert to fraction form
    35,907.30/53,827.74 = 18,338.40/x
  3. Step 3: Cross multiply
    35,907.30x = 53,827.74 × 18,338.40
  4. Step 4: Simplify right side
    35,907.30x = 987,114,627.22
  5. Step 5: Solve for x
    x = 987,114,627.22/35,907.30
  6. Step 6: Final answer
    x = 27,490.64

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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.