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Finding the Fourth Proportional to 61,670.84, 85,107.31 and 37,810.67

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Solution

The fourth proportional to 61,670.84, 85,107.31 and 37,810.67 is: 52,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,670.84 : 85,107.31 = 37,810.67 : x
  2. Step 2: Convert to fraction form
    61,670.84/85,107.31 = 37,810.67/x
  3. Step 3: Cross multiply
    61,670.84x = 85,107.31 × 37,810.67
  4. Step 4: Simplify right side
    61,670.84x = 3,217,963,892.93
  5. Step 5: Solve for x
    x = 3,217,963,892.93/61,670.84
  6. Step 6: Final answer
    x = 52,179.67

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1.5x scale

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.