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Finding the Fourth Proportional to 7,855.56, 10,835.87 and 4,666.70

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Solution

The fourth proportional to 7,855.56, 10,835.87 and 4,666.70 is: 6,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.56 : 10,835.87 = 4,666.70 : x
  2. Step 2: Convert to fraction form
    7,855.56/10,835.87 = 4,666.70/x
  3. Step 3: Cross multiply
    7,855.56x = 10,835.87 × 4,666.70
  4. Step 4: Simplify right side
    7,855.56x = 50,567,677.02
  5. Step 5: Solve for x
    x = 50,567,677.02/7,855.56
  6. Step 6: Final answer
    x = 6,437.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.