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Finding the Fourth Proportional to 8,606.68, 11,877.42 and 4,830.22

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Solution

The fourth proportional to 8,606.68, 11,877.42 and 4,830.22 is: 6,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.68 : 11,877.42 = 4,830.22 : x
  2. Step 2: Convert to fraction form
    8,606.68/11,877.42 = 4,830.22/x
  3. Step 3: Cross multiply
    8,606.68x = 11,877.42 × 4,830.22
  4. Step 4: Simplify right side
    8,606.68x = 57,370,551.63
  5. Step 5: Solve for x
    x = 57,370,551.63/8,606.68
  6. Step 6: Final answer
    x = 6,665.82

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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.