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Finding the Fourth Proportional to 28,953, 39,955.14 and 16,377.48

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Solution

The fourth proportional to 28,953, 39,955.14 and 16,377.48 is: 22,600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953 : 39,955.14 = 16,377.48 : x
  2. Step 2: Convert to fraction form
    28,953/39,955.14 = 16,377.48/x
  3. Step 3: Cross multiply
    28,953x = 39,955.14 × 16,377.48
  4. Step 4: Simplify right side
    28,953x = 654,364,506.25
  5. Step 5: Solve for x
    x = 654,364,506.25/28,953
  6. Step 6: Final answer
    x = 22,600.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.