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Finding the Fourth Proportional to 61,984.71, 85,539.20 and 33,690.38

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Solution

The fourth proportional to 61,984.71, 85,539.20 and 33,690.38 is: 46,492.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,984.71 : 85,539.20 = 33,690.38 : x
  2. Step 2: Convert to fraction form
    61,984.71/85,539.20 = 33,690.38/x
  3. Step 3: Cross multiply
    61,984.71x = 85,539.20 × 33,690.38
  4. Step 4: Simplify right side
    61,984.71x = 2,881,847,556.75
  5. Step 5: Solve for x
    x = 2,881,847,556.75/61,984.71
  6. Step 6: Final answer
    x = 46,492.88

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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.