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Finding the Fourth Proportional to 5,460.84, 8,151.53 and 5,055.12

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Solution

The fourth proportional to 5,460.84, 8,151.53 and 5,055.12 is: 7,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.84 : 8,151.53 = 5,055.12 : x
  2. Step 2: Convert to fraction form
    5,460.84/8,151.53 = 5,055.12/x
  3. Step 3: Cross multiply
    5,460.84x = 8,151.53 × 5,055.12
  4. Step 4: Simplify right side
    5,460.84x = 41,206,937.06
  5. Step 5: Solve for x
    x = 41,206,937.06/5,460.84
  6. Step 6: Final answer
    x = 7,545.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.