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Finding the Fourth Proportional to 32,790,652.80, 49,185,979.20 and 19,185,763.20

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Solution

The fourth proportional to 32,790,652.80, 49,185,979.20 and 19,185,763.20 is: 28,778,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,790,652.80 : 49,185,979.20 = 19,185,763.20 : x
  2. Step 2: Convert to fraction form
    32,790,652.80/49,185,979.20 = 19,185,763.20/x
  3. Step 3: Cross multiply
    32,790,652.80x = 49,185,979.20 × 19,185,763.20
  4. Step 4: Simplify right side
    32,790,652.80x = 943,670,549,691,325.50
  5. Step 5: Solve for x
    x = 943,670,549,691,325.50/32,790,652.80
  6. Step 6: Final answer
    x = 28,778,644.80

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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.