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Finding the Fourth Proportional to 31,007.80, 46,511.70 and 29,549.80

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Solution

The fourth proportional to 31,007.80, 46,511.70 and 29,549.80 is: 44,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,007.80 : 46,511.70 = 29,549.80 : x
  2. Step 2: Convert to fraction form
    31,007.80/46,511.70 = 29,549.80/x
  3. Step 3: Cross multiply
    31,007.80x = 46,511.70 × 29,549.80
  4. Step 4: Simplify right side
    31,007.80x = 1,374,411,432.66
  5. Step 5: Solve for x
    x = 1,374,411,432.66/31,007.80
  6. Step 6: Final answer
    x = 44,324.70

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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.