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Finding the Fourth Proportional to 61,312.99, 84,609.19 and 35,821.72

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Solution

The fourth proportional to 61,312.99, 84,609.19 and 35,821.72 is: 49,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.99 : 84,609.19 = 35,821.72 : x
  2. Step 2: Convert to fraction form
    61,312.99/84,609.19 = 35,821.72/x
  3. Step 3: Cross multiply
    61,312.99x = 84,609.19 × 35,821.72
  4. Step 4: Simplify right side
    61,312.99x = 3,030,846,713.61
  5. Step 5: Solve for x
    x = 3,030,846,713.61/61,312.99
  6. Step 6: Final answer
    x = 49,432.37

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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.