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Finding the Fourth Proportional to 56,357.96, 84,538.49 and 16,915.08

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Solution

The fourth proportional to 56,357.96, 84,538.49 and 16,915.08 is: 25,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.96 : 84,538.49 = 16,915.08 : x
  2. Step 2: Convert to fraction form
    56,357.96/84,538.49 = 16,915.08/x
  3. Step 3: Cross multiply
    56,357.96x = 84,538.49 × 16,915.08
  4. Step 4: Simplify right side
    56,357.96x = 1,429,975,078.34
  5. Step 5: Solve for x
    x = 1,429,975,078.34/56,357.96
  6. Step 6: Final answer
    x = 25,373.08

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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.