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Finding the Fourth Proportional to 35,422.40, 53,018.40 and 27,588.80

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Solution

The fourth proportional to 35,422.40, 53,018.40 and 27,588.80 is: 41,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,422.40 : 53,018.40 = 27,588.80 : x
  2. Step 2: Convert to fraction form
    35,422.40/53,018.40 = 27,588.80/x
  3. Step 3: Cross multiply
    35,422.40x = 53,018.40 × 27,588.80
  4. Step 4: Simplify right side
    35,422.40x = 1,462,714,033.92
  5. Step 5: Solve for x
    x = 1,462,714,033.92/35,422.40
  6. Step 6: Final answer
    x = 41,293.48

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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.