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Finding the Fourth Proportional to 57,652.80, 86,488.20 and 18,206.16

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Solution

The fourth proportional to 57,652.80, 86,488.20 and 18,206.16 is: 27,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.80 : 86,488.20 = 18,206.16 : x
  2. Step 2: Convert to fraction form
    57,652.80/86,488.20 = 18,206.16/x
  3. Step 3: Cross multiply
    57,652.80x = 86,488.20 × 18,206.16
  4. Step 4: Simplify right side
    57,652.80x = 1,574,618,007.31
  5. Step 5: Solve for x
    x = 1,574,618,007.31/57,652.80
  6. Step 6: Final answer
    x = 27,312.08

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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.