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Finding the Fourth Proportional to 4,885.70, 6,742.22 and 2,897.24

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Solution

The fourth proportional to 4,885.70, 6,742.22 and 2,897.24 is: 3,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.70 : 6,742.22 = 2,897.24 : x
  2. Step 2: Convert to fraction form
    4,885.70/6,742.22 = 2,897.24/x
  3. Step 3: Cross multiply
    4,885.70x = 6,742.22 × 2,897.24
  4. Step 4: Simplify right side
    4,885.70x = 19,533,829.47
  5. Step 5: Solve for x
    x = 19,533,829.47/4,885.70
  6. Step 6: Final answer
    x = 3,998.16

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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.