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Finding the Fourth Proportional to 4,649.52, 6,419.34 and 2,883

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Solution

The fourth proportional to 4,649.52, 6,419.34 and 2,883 is: 3,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,649.52 : 6,419.34 = 2,883 : x
  2. Step 2: Convert to fraction form
    4,649.52/6,419.34 = 2,883/x
  3. Step 3: Cross multiply
    4,649.52x = 6,419.34 × 2,883
  4. Step 4: Simplify right side
    4,649.52x = 18,506,957.22
  5. Step 5: Solve for x
    x = 18,506,957.22/4,649.52
  6. Step 6: Final answer
    x = 3,980.40

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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.