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Finding the Fourth Proportional to 53,103.60, 79,669.08 and 15,662.16

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Solution

The fourth proportional to 53,103.60, 79,669.08 and 15,662.16 is: 23,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,103.60 : 79,669.08 = 15,662.16 : x
  2. Step 2: Convert to fraction form
    53,103.60/79,669.08 = 15,662.16/x
  3. Step 3: Cross multiply
    53,103.60x = 79,669.08 × 15,662.16
  4. Step 4: Simplify right side
    53,103.60x = 1,247,789,878.01
  5. Step 5: Solve for x
    x = 1,247,789,878.01/53,103.60
  6. Step 6: Final answer
    x = 23,497.27

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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.