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Finding the Fourth Proportional to 35,970.40, 53,955.60 and 33,781.60

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Solution

The fourth proportional to 35,970.40, 53,955.60 and 33,781.60 is: 50,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,970.40 : 53,955.60 = 33,781.60 : x
  2. Step 2: Convert to fraction form
    35,970.40/53,955.60 = 33,781.60/x
  3. Step 3: Cross multiply
    35,970.40x = 53,955.60 × 33,781.60
  4. Step 4: Simplify right side
    35,970.40x = 1,822,706,496.96
  5. Step 5: Solve for x
    x = 1,822,706,496.96/35,970.40
  6. Step 6: Final answer
    x = 50,672.40

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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.