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Finding the Fourth Proportional to 18,559,612.60, 27,842,043.30 and 5,778,784.60

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Solution

The fourth proportional to 18,559,612.60, 27,842,043.30 and 5,778,784.60 is: 8,668,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559,612.60 : 27,842,043.30 = 5,778,784.60 : x
  2. Step 2: Convert to fraction form
    18,559,612.60/27,842,043.30 = 5,778,784.60/x
  3. Step 3: Cross multiply
    18,559,612.60x = 27,842,043.30 × 5,778,784.60
  4. Step 4: Simplify right side
    18,559,612.60x = 160,893,171,054,573.19
  5. Step 5: Solve for x
    x = 160,893,171,054,573.19/18,559,612.60
  6. Step 6: Final answer
    x = 8,668,994.04

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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.