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Finding the Fourth Proportional to 5,649.90, 8,470.64 and 2,358.32

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Solution

The fourth proportional to 5,649.90, 8,470.64 and 2,358.32 is: 3,535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.90 : 8,470.64 = 2,358.32 : x
  2. Step 2: Convert to fraction form
    5,649.90/8,470.64 = 2,358.32/x
  3. Step 3: Cross multiply
    5,649.90x = 8,470.64 × 2,358.32
  4. Step 4: Simplify right side
    5,649.90x = 19,976,479.72
  5. Step 5: Solve for x
    x = 19,976,479.72/5,649.90
  6. Step 6: Final answer
    x = 3,535.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.