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Finding the Fourth Proportional to 53,535.60, 73,878.12 and 29,662.20

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Solution

The fourth proportional to 53,535.60, 73,878.12 and 29,662.20 is: 40,933.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,535.60 : 73,878.12 = 29,662.20 : x
  2. Step 2: Convert to fraction form
    53,535.60/73,878.12 = 29,662.20/x
  3. Step 3: Cross multiply
    53,535.60x = 73,878.12 × 29,662.20
  4. Step 4: Simplify right side
    53,535.60x = 2,191,387,571.06
  5. Step 5: Solve for x
    x = 2,191,387,571.06/53,535.60
  6. Step 6: Final answer
    x = 40,933.28

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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.