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Finding the Fourth Proportional to 53,720.07, 80,580.09 and 16,784.07

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Solution

The fourth proportional to 53,720.07, 80,580.09 and 16,784.07 is: 25,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.07 : 80,580.09 = 16,784.07 : x
  2. Step 2: Convert to fraction form
    53,720.07/80,580.09 = 16,784.07/x
  3. Step 3: Cross multiply
    53,720.07x = 80,580.09 × 16,784.07
  4. Step 4: Simplify right side
    53,720.07x = 1,352,461,871.17
  5. Step 5: Solve for x
    x = 1,352,461,871.17/53,720.07
  6. Step 6: Final answer
    x = 25,176.10

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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.