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Finding the Fourth Proportional to 40,679.40, 61,019.10 and 29,533.80

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Solution

The fourth proportional to 40,679.40, 61,019.10 and 29,533.80 is: 44,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,679.40 : 61,019.10 = 29,533.80 : x
  2. Step 2: Convert to fraction form
    40,679.40/61,019.10 = 29,533.80/x
  3. Step 3: Cross multiply
    40,679.40x = 61,019.10 × 29,533.80
  4. Step 4: Simplify right side
    40,679.40x = 1,802,125,895.58
  5. Step 5: Solve for x
    x = 1,802,125,895.58/40,679.40
  6. Step 6: Final answer
    x = 44,300.70

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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.