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Finding the Fourth Proportional to 57,300.90, 85,916.82 and 25,705.26

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Solution

The fourth proportional to 57,300.90, 85,916.82 and 25,705.26 is: 38,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,300.90 : 85,916.82 = 25,705.26 : x
  2. Step 2: Convert to fraction form
    57,300.90/85,916.82 = 25,705.26/x
  3. Step 3: Cross multiply
    57,300.90x = 85,916.82 × 25,705.26
  4. Step 4: Simplify right side
    57,300.90x = 2,208,514,196.47
  5. Step 5: Solve for x
    x = 2,208,514,196.47/57,300.90
  6. Step 6: Final answer
    x = 38,542.40

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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.