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Finding the Fourth Proportional to 61,754.40, 85,220.40 and 33,458.40

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Solution

The fourth proportional to 61,754.40, 85,220.40 and 33,458.40 is: 46,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,754.40 : 85,220.40 = 33,458.40 : x
  2. Step 2: Convert to fraction form
    61,754.40/85,220.40 = 33,458.40/x
  3. Step 3: Cross multiply
    61,754.40x = 85,220.40 × 33,458.40
  4. Step 4: Simplify right side
    61,754.40x = 2,851,338,231.36
  5. Step 5: Solve for x
    x = 2,851,338,231.36/61,754.40
  6. Step 6: Final answer
    x = 46,172.23

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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.