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Finding the Fourth Proportional to 4,878.86, 7,317.45 and 1,758.24

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Solution

The fourth proportional to 4,878.86, 7,317.45 and 1,758.24 is: 2,637.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.86 : 7,317.45 = 1,758.24 : x
  2. Step 2: Convert to fraction form
    4,878.86/7,317.45 = 1,758.24/x
  3. Step 3: Cross multiply
    4,878.86x = 7,317.45 × 1,758.24
  4. Step 4: Simplify right side
    4,878.86x = 12,865,833.29
  5. Step 5: Solve for x
    x = 12,865,833.29/4,878.86
  6. Step 6: Final answer
    x = 2,637.06

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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.