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Finding the Fourth Proportional to 8,543.01, 12,814.55 and 4,156.71

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Solution

The fourth proportional to 8,543.01, 12,814.55 and 4,156.71 is: 6,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.01 : 12,814.55 = 4,156.71 : x
  2. Step 2: Convert to fraction form
    8,543.01/12,814.55 = 4,156.71/x
  3. Step 3: Cross multiply
    8,543.01x = 12,814.55 × 4,156.71
  4. Step 4: Simplify right side
    8,543.01x = 53,266,347.35
  5. Step 5: Solve for x
    x = 53,266,347.35/8,543.01
  6. Step 6: Final answer
    x = 6,235.08

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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.