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Finding the Fourth Proportional to 57,209.65, 85,814.49 and 15,656.65

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Solution

The fourth proportional to 57,209.65, 85,814.49 and 15,656.65 is: 23,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.65 : 85,814.49 = 15,656.65 : x
  2. Step 2: Convert to fraction form
    57,209.65/85,814.49 = 15,656.65/x
  3. Step 3: Cross multiply
    57,209.65x = 85,814.49 × 15,656.65
  4. Step 4: Simplify right side
    57,209.65x = 1,343,567,434.86
  5. Step 5: Solve for x
    x = 1,343,567,434.86/57,209.65
  6. Step 6: Final answer
    x = 23,484.98

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Similar ratio
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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.