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Finding the Fourth Proportional to 8,440.58, 11,648.70 and 4,903.58

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Solution

The fourth proportional to 8,440.58, 11,648.70 and 4,903.58 is: 6,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.58 : 11,648.70 = 4,903.58 : x
  2. Step 2: Convert to fraction form
    8,440.58/11,648.70 = 4,903.58/x
  3. Step 3: Cross multiply
    8,440.58x = 11,648.70 × 4,903.58
  4. Step 4: Simplify right side
    8,440.58x = 57,120,274.10
  5. Step 5: Solve for x
    x = 57,120,274.10/8,440.58
  6. Step 6: Final answer
    x = 6,767.34

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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.