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Finding the Fourth Proportional to 58,908.01, 88,368.15 and 18,916.89

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Solution

The fourth proportional to 58,908.01, 88,368.15 and 18,916.89 is: 28,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,908.01 : 88,368.15 = 18,916.89 : x
  2. Step 2: Convert to fraction form
    58,908.01/88,368.15 = 18,916.89/x
  3. Step 3: Cross multiply
    58,908.01x = 88,368.15 × 18,916.89
  4. Step 4: Simplify right side
    58,908.01x = 1,671,650,620.35
  5. Step 5: Solve for x
    x = 1,671,650,620.35/58,908.01
  6. Step 6: Final answer
    x = 28,377.31

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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.