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Finding the Fourth Proportional to 61,913.72, 85,438.59 and 35,050.88

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Solution

The fourth proportional to 61,913.72, 85,438.59 and 35,050.88 is: 48,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,913.72 : 85,438.59 = 35,050.88 : x
  2. Step 2: Convert to fraction form
    61,913.72/85,438.59 = 35,050.88/x
  3. Step 3: Cross multiply
    61,913.72x = 85,438.59 × 35,050.88
  4. Step 4: Simplify right side
    61,913.72x = 2,994,697,765.46
  5. Step 5: Solve for x
    x = 2,994,697,765.46/61,913.72
  6. Step 6: Final answer
    x = 48,368.89

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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.