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Finding the Fourth Proportional to 17,158,457.60, 23,678,579.88 and 9,317,901.30

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Solution

The fourth proportional to 17,158,457.60, 23,678,579.88 and 9,317,901.30 is: 12,858,654.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,158,457.60 : 23,678,579.88 = 9,317,901.30 : x
  2. Step 2: Convert to fraction form
    17,158,457.60/23,678,579.88 = 9,317,901.30/x
  3. Step 3: Cross multiply
    17,158,457.60x = 23,678,579.88 × 9,317,901.30
  4. Step 4: Simplify right side
    17,158,457.60x = 220,634,670,246,005.84
  5. Step 5: Solve for x
    x = 220,634,670,246,005.84/17,158,457.60
  6. Step 6: Final answer
    x = 12,858,654.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.