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Finding the Fourth Proportional to 39,873.80, 59,810.70 and 29,894.60

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Solution

The fourth proportional to 39,873.80, 59,810.70 and 29,894.60 is: 44,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.80 : 59,810.70 = 29,894.60 : x
  2. Step 2: Convert to fraction form
    39,873.80/59,810.70 = 29,894.60/x
  3. Step 3: Cross multiply
    39,873.80x = 59,810.70 × 29,894.60
  4. Step 4: Simplify right side
    39,873.80x = 1,788,016,952.22
  5. Step 5: Solve for x
    x = 1,788,016,952.22/39,873.80
  6. Step 6: Final answer
    x = 44,841.90

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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.