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Finding the Fourth Proportional to 7,395.95, 10,208.10 and 4,878.51

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Solution

The fourth proportional to 7,395.95, 10,208.10 and 4,878.51 is: 6,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,395.95 : 10,208.10 = 4,878.51 : x
  2. Step 2: Convert to fraction form
    7,395.95/10,208.10 = 4,878.51/x
  3. Step 3: Cross multiply
    7,395.95x = 10,208.10 × 4,878.51
  4. Step 4: Simplify right side
    7,395.95x = 49,800,317.93
  5. Step 5: Solve for x
    x = 49,800,317.93/7,395.95
  6. Step 6: Final answer
    x = 6,733.46

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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.