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Finding the Fourth Proportional to 57,357.16, 86,046.54 and 17,904.76

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Solution

The fourth proportional to 57,357.16, 86,046.54 and 17,904.76 is: 26,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.16 : 86,046.54 = 17,904.76 : x
  2. Step 2: Convert to fraction form
    57,357.16/86,046.54 = 17,904.76/x
  3. Step 3: Cross multiply
    57,357.16x = 86,046.54 × 17,904.76
  4. Step 4: Simplify right side
    57,357.16x = 1,540,642,647.53
  5. Step 5: Solve for x
    x = 1,540,642,647.53/57,357.16
  6. Step 6: Final answer
    x = 26,860.51

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1.5x scale

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.