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Finding the Fourth Proportional to 48,646.42, 72,938.19 and 19,067.25

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Solution

The fourth proportional to 48,646.42, 72,938.19 and 19,067.25 is: 28,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,646.42 : 72,938.19 = 19,067.25 : x
  2. Step 2: Convert to fraction form
    48,646.42/72,938.19 = 19,067.25/x
  3. Step 3: Cross multiply
    48,646.42x = 72,938.19 × 19,067.25
  4. Step 4: Simplify right side
    48,646.42x = 1,390,730,530.77
  5. Step 5: Solve for x
    x = 1,390,730,530.77/48,646.42
  6. Step 6: Final answer
    x = 28,588.55

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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.