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Finding the Fourth Proportional to 55,683.72, 83,525.58 and 13,563.72

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Solution

The fourth proportional to 55,683.72, 83,525.58 and 13,563.72 is: 20,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,683.72 : 83,525.58 = 13,563.72 : x
  2. Step 2: Convert to fraction form
    55,683.72/83,525.58 = 13,563.72/x
  3. Step 3: Cross multiply
    55,683.72x = 83,525.58 × 13,563.72
  4. Step 4: Simplify right side
    55,683.72x = 1,132,917,579.96
  5. Step 5: Solve for x
    x = 1,132,917,579.96/55,683.72
  6. Step 6: Final answer
    x = 20,345.58

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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.