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Finding the Fourth Proportional to 61,397.34, 84,727.48 and 34,539.84

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Solution

The fourth proportional to 61,397.34, 84,727.48 and 34,539.84 is: 47,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,397.34 : 84,727.48 = 34,539.84 : x
  2. Step 2: Convert to fraction form
    61,397.34/84,727.48 = 34,539.84/x
  3. Step 3: Cross multiply
    61,397.34x = 84,727.48 × 34,539.84
  4. Step 4: Simplify right side
    61,397.34x = 2,926,473,602.80
  5. Step 5: Solve for x
    x = 2,926,473,602.80/61,397.34
  6. Step 6: Final answer
    x = 47,664.50

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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.