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Finding the Fourth Proportional to 57,963, 79,988.94 and 32,812.50

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Solution

The fourth proportional to 57,963, 79,988.94 and 32,812.50 is: 45,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,963 : 79,988.94 = 32,812.50 : x
  2. Step 2: Convert to fraction form
    57,963/79,988.94 = 32,812.50/x
  3. Step 3: Cross multiply
    57,963x = 79,988.94 × 32,812.50
  4. Step 4: Simplify right side
    57,963x = 2,624,637,093.75
  5. Step 5: Solve for x
    x = 2,624,637,093.75/57,963
  6. Step 6: Final answer
    x = 45,281.25

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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.