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Finding the Fourth Proportional to 48,653.60, 72,926.40 and 19,061.60

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Solution

The fourth proportional to 48,653.60, 72,926.40 and 19,061.60 is: 28,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,653.60 : 72,926.40 = 19,061.60 : x
  2. Step 2: Convert to fraction form
    48,653.60/72,926.40 = 19,061.60/x
  3. Step 3: Cross multiply
    48,653.60x = 72,926.40 × 19,061.60
  4. Step 4: Simplify right side
    48,653.60x = 1,390,093,866.24
  5. Step 5: Solve for x
    x = 1,390,093,866.24/48,653.60
  6. Step 6: Final answer
    x = 28,571.24

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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.