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Finding the Fourth Proportional to 61,160.40, 84,404.70 and 34,311.42

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Solution

The fourth proportional to 61,160.40, 84,404.70 and 34,311.42 is: 47,351.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,160.40 : 84,404.70 = 34,311.42 : x
  2. Step 2: Convert to fraction form
    61,160.40/84,404.70 = 34,311.42/x
  3. Step 3: Cross multiply
    61,160.40x = 84,404.70 × 34,311.42
  4. Step 4: Simplify right side
    61,160.40x = 2,896,045,111.67
  5. Step 5: Solve for x
    x = 2,896,045,111.67/61,160.40
  6. Step 6: Final answer
    x = 47,351.64

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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.