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Finding the Fourth Proportional to 61,984.71, 85,538.43 and 33,690.60

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Solution

The fourth proportional to 61,984.71, 85,538.43 and 33,690.60 is: 46,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,984.71 : 85,538.43 = 33,690.60 : x
  2. Step 2: Convert to fraction form
    61,984.71/85,538.43 = 33,690.60/x
  3. Step 3: Cross multiply
    61,984.71x = 85,538.43 × 33,690.60
  4. Step 4: Simplify right side
    61,984.71x = 2,881,841,029.76
  5. Step 5: Solve for x
    x = 2,881,841,029.76/61,984.71
  6. Step 6: Final answer
    x = 46,492.77

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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.