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Finding the Fourth Proportional to 57,980.16, 86,968.08 and 16,426.08

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Solution

The fourth proportional to 57,980.16, 86,968.08 and 16,426.08 is: 24,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980.16 : 86,968.08 = 16,426.08 : x
  2. Step 2: Convert to fraction form
    57,980.16/86,968.08 = 16,426.08/x
  3. Step 3: Cross multiply
    57,980.16x = 86,968.08 × 16,426.08
  4. Step 4: Simplify right side
    57,980.16x = 1,428,544,639.53
  5. Step 5: Solve for x
    x = 1,428,544,639.53/57,980.16
  6. Step 6: Final answer
    x = 24,638.51

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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.