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Finding the Fourth Proportional to 35,420.58, 48,880.71 and 19,505.09

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Solution

The fourth proportional to 35,420.58, 48,880.71 and 19,505.09 is: 26,917.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.58 : 48,880.71 = 19,505.09 : x
  2. Step 2: Convert to fraction form
    35,420.58/48,880.71 = 19,505.09/x
  3. Step 3: Cross multiply
    35,420.58x = 48,880.71 × 19,505.09
  4. Step 4: Simplify right side
    35,420.58x = 953,422,647.81
  5. Step 5: Solve for x
    x = 953,422,647.81/35,420.58
  6. Step 6: Final answer
    x = 26,917.19

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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.