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Finding the Fourth Proportional to 57,802.50, 86,721.23 and 40,968.07

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Solution

The fourth proportional to 57,802.50, 86,721.23 and 40,968.07 is: 61,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,802.50 : 86,721.23 = 40,968.07 : x
  2. Step 2: Convert to fraction form
    57,802.50/86,721.23 = 40,968.07/x
  3. Step 3: Cross multiply
    57,802.50x = 86,721.23 × 40,968.07
  4. Step 4: Simplify right side
    57,802.50x = 3,552,801,306.74
  5. Step 5: Solve for x
    x = 3,552,801,306.74/57,802.50
  6. Step 6: Final answer
    x = 61,464.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.