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Finding the Fourth Proportional to 8,916.95, 13,370.42 and 6,108.95

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Solution

The fourth proportional to 8,916.95, 13,370.42 and 6,108.95 is: 9,160.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.95 : 13,370.42 = 6,108.95 : x
  2. Step 2: Convert to fraction form
    8,916.95/13,370.42 = 6,108.95/x
  3. Step 3: Cross multiply
    8,916.95x = 13,370.42 × 6,108.95
  4. Step 4: Simplify right side
    8,916.95x = 81,679,196.71
  5. Step 5: Solve for x
    x = 81,679,196.71/8,916.95
  6. Step 6: Final answer
    x = 9,160.00

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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.