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Finding the Fourth Proportional to 58,028.32, 86,925.84 and 30,268

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Solution

The fourth proportional to 58,028.32, 86,925.84 and 30,268 is: 45,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,028.32 : 86,925.84 = 30,268 : x
  2. Step 2: Convert to fraction form
    58,028.32/86,925.84 = 30,268/x
  3. Step 3: Cross multiply
    58,028.32x = 86,925.84 × 30,268
  4. Step 4: Simplify right side
    58,028.32x = 2,631,071,325.12
  5. Step 5: Solve for x
    x = 2,631,071,325.12/58,028.32
  6. Step 6: Final answer
    x = 45,341.16

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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.