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Finding the Fourth Proportional to 46,471.90, 63,885.35 and 39,987.44

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Solution

The fourth proportional to 46,471.90, 63,885.35 and 39,987.44 is: 54,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,471.90 : 63,885.35 = 39,987.44 : x
  2. Step 2: Convert to fraction form
    46,471.90/63,885.35 = 39,987.44/x
  3. Step 3: Cross multiply
    46,471.90x = 63,885.35 × 39,987.44
  4. Step 4: Simplify right side
    46,471.90x = 2,554,611,859.69
  5. Step 5: Solve for x
    x = 2,554,611,859.69/46,471.90
  6. Step 6: Final answer
    x = 54,971.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.