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Finding the Fourth Proportional to 56,377.42, 84,573.89 and 18,948.16

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Solution

The fourth proportional to 56,377.42, 84,573.89 and 18,948.16 is: 28,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,377.42 : 84,573.89 = 18,948.16 : x
  2. Step 2: Convert to fraction form
    56,377.42/84,573.89 = 18,948.16/x
  3. Step 3: Cross multiply
    56,377.42x = 84,573.89 × 18,948.16
  4. Step 4: Simplify right side
    56,377.42x = 1,602,519,681.57
  5. Step 5: Solve for x
    x = 1,602,519,681.57/56,377.42
  6. Step 6: Final answer
    x = 28,424.85

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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.