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Finding the Fourth Proportional to 57,700.64, 86,555.82 and 18,256.88

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Solution

The fourth proportional to 57,700.64, 86,555.82 and 18,256.88 is: 27,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,700.64 : 86,555.82 = 18,256.88 : x
  2. Step 2: Convert to fraction form
    57,700.64/86,555.82 = 18,256.88/x
  3. Step 3: Cross multiply
    57,700.64x = 86,555.82 × 18,256.88
  4. Step 4: Simplify right side
    57,700.64x = 1,580,239,219.04
  5. Step 5: Solve for x
    x = 1,580,239,219.04/57,700.64
  6. Step 6: Final answer
    x = 27,386.86

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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.