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Finding the Fourth Proportional to 4,901.92, 6,765.63 and 2,913.58

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Solution

The fourth proportional to 4,901.92, 6,765.63 and 2,913.58 is: 4,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.92 : 6,765.63 = 2,913.58 : x
  2. Step 2: Convert to fraction form
    4,901.92/6,765.63 = 2,913.58/x
  3. Step 3: Cross multiply
    4,901.92x = 6,765.63 × 2,913.58
  4. Step 4: Simplify right side
    4,901.92x = 19,712,204.26
  5. Step 5: Solve for x
    x = 19,712,204.26/4,901.92
  6. Step 6: Final answer
    x = 4,021.32

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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.