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Finding the Fourth Proportional to 6,454.95, 8,916.17 and 4,981.08

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Solution

The fourth proportional to 6,454.95, 8,916.17 and 4,981.08 is: 6,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.95 : 8,916.17 = 4,981.08 : x
  2. Step 2: Convert to fraction form
    6,454.95/8,916.17 = 4,981.08/x
  3. Step 3: Cross multiply
    6,454.95x = 8,916.17 × 4,981.08
  4. Step 4: Simplify right side
    6,454.95x = 44,412,156.06
  5. Step 5: Solve for x
    x = 44,412,156.06/6,454.95
  6. Step 6: Final answer
    x = 6,880.33

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1.5x scale

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.