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Finding the Fourth Proportional to 61,521.50, 84,899.94 and 35,685.14

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Solution

The fourth proportional to 61,521.50, 84,899.94 and 35,685.14 is: 49,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.50 : 84,899.94 = 35,685.14 : x
  2. Step 2: Convert to fraction form
    61,521.50/84,899.94 = 35,685.14/x
  3. Step 3: Cross multiply
    61,521.50x = 84,899.94 × 35,685.14
  4. Step 4: Simplify right side
    61,521.50x = 3,029,666,244.89
  5. Step 5: Solve for x
    x = 3,029,666,244.89/61,521.50
  6. Step 6: Final answer
    x = 49,245.65

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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.