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Finding the Fourth Proportional to 48,580.62, 72,870.93 and 13,523.01

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Solution

The fourth proportional to 48,580.62, 72,870.93 and 13,523.01 is: 20,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,580.62 : 72,870.93 = 13,523.01 : x
  2. Step 2: Convert to fraction form
    48,580.62/72,870.93 = 13,523.01/x
  3. Step 3: Cross multiply
    48,580.62x = 72,870.93 × 13,523.01
  4. Step 4: Simplify right side
    48,580.62x = 985,434,315.10
  5. Step 5: Solve for x
    x = 985,434,315.10/48,580.62
  6. Step 6: Final answer
    x = 20,284.52

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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.