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Finding the Fourth Proportional to 61,916.91, 85,445.67 and 35,064.65

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Solution

The fourth proportional to 61,916.91, 85,445.67 and 35,064.65 is: 48,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,916.91 : 85,445.67 = 35,064.65 : x
  2. Step 2: Convert to fraction form
    61,916.91/85,445.67 = 35,064.65/x
  3. Step 3: Cross multiply
    61,916.91x = 85,445.67 × 35,064.65
  4. Step 4: Simplify right side
    61,916.91x = 2,996,122,085.34
  5. Step 5: Solve for x
    x = 2,996,122,085.34/61,916.91
  6. Step 6: Final answer
    x = 48,389.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.