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Finding the Fourth Proportional to 57,903.84, 86,857.51 and 19,952.64

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Solution

The fourth proportional to 57,903.84, 86,857.51 and 19,952.64 is: 29,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,903.84 : 86,857.51 = 19,952.64 : x
  2. Step 2: Convert to fraction form
    57,903.84/86,857.51 = 19,952.64/x
  3. Step 3: Cross multiply
    57,903.84x = 86,857.51 × 19,952.64
  4. Step 4: Simplify right side
    57,903.84x = 1,733,036,144.16
  5. Step 5: Solve for x
    x = 1,733,036,144.16/57,903.84
  6. Step 6: Final answer
    x = 29,929.56

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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.