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Finding the Fourth Proportional to 57,860.90, 79,879.53 and 37,730.06

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Solution

The fourth proportional to 57,860.90, 79,879.53 and 37,730.06 is: 52,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,860.90 : 79,879.53 = 37,730.06 : x
  2. Step 2: Convert to fraction form
    57,860.90/79,879.53 = 37,730.06/x
  3. Step 3: Cross multiply
    57,860.90x = 79,879.53 × 37,730.06
  4. Step 4: Simplify right side
    57,860.90x = 3,013,859,459.67
  5. Step 5: Solve for x
    x = 3,013,859,459.67/57,860.90
  6. Step 6: Final answer
    x = 52,088.02

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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.