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Finding the Fourth Proportional to 25,300.70, 34,916.86 and 14,691.94

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Solution

The fourth proportional to 25,300.70, 34,916.86 and 14,691.94 is: 20,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,300.70 : 34,916.86 = 14,691.94 : x
  2. Step 2: Convert to fraction form
    25,300.70/34,916.86 = 14,691.94/x
  3. Step 3: Cross multiply
    25,300.70x = 34,916.86 × 14,691.94
  4. Step 4: Simplify right side
    25,300.70x = 512,996,412.11
  5. Step 5: Solve for x
    x = 512,996,412.11/25,300.70
  6. Step 6: Final answer
    x = 20,275.98

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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.