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Finding the Fourth Proportional to 35,963.60, 53,943.57 and 12,588.21

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Solution

The fourth proportional to 35,963.60, 53,943.57 and 12,588.21 is: 18,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,963.60 : 53,943.57 = 12,588.21 : x
  2. Step 2: Convert to fraction form
    35,963.60/53,943.57 = 12,588.21/x
  3. Step 3: Cross multiply
    35,963.60x = 53,943.57 × 12,588.21
  4. Step 4: Simplify right side
    35,963.60x = 679,052,987.31
  5. Step 5: Solve for x
    x = 679,052,987.31/35,963.60
  6. Step 6: Final answer
    x = 18,881.68

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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.