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Finding the Fourth Proportional to 46,231.80, 69,347.70 and 43,315.80

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Solution

The fourth proportional to 46,231.80, 69,347.70 and 43,315.80 is: 64,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,231.80 : 69,347.70 = 43,315.80 : x
  2. Step 2: Convert to fraction form
    46,231.80/69,347.70 = 43,315.80/x
  3. Step 3: Cross multiply
    46,231.80x = 69,347.70 × 43,315.80
  4. Step 4: Simplify right side
    46,231.80x = 3,003,851,103.66
  5. Step 5: Solve for x
    x = 3,003,851,103.66/46,231.80
  6. Step 6: Final answer
    x = 64,973.70

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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.