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Finding the Fourth Proportional to 48,632.64, 72,928.29 and 19,045.77

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Solution

The fourth proportional to 48,632.64, 72,928.29 and 19,045.77 is: 28,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,632.64 : 72,928.29 = 19,045.77 : x
  2. Step 2: Convert to fraction form
    48,632.64/72,928.29 = 19,045.77/x
  3. Step 3: Cross multiply
    48,632.64x = 72,928.29 × 19,045.77
  4. Step 4: Simplify right side
    48,632.64x = 1,388,975,235.77
  5. Step 5: Solve for x
    x = 1,388,975,235.77/48,632.64
  6. Step 6: Final answer
    x = 28,560.56

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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.