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Finding the Fourth Proportional to 16,645,323.60, 24,967,985.40 and 12,866,187.60

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Solution

The fourth proportional to 16,645,323.60, 24,967,985.40 and 12,866,187.60 is: 19,299,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,645,323.60 : 24,967,985.40 = 12,866,187.60 : x
  2. Step 2: Convert to fraction form
    16,645,323.60/24,967,985.40 = 12,866,187.60/x
  3. Step 3: Cross multiply
    16,645,323.60x = 24,967,985.40 × 12,866,187.60
  4. Step 4: Simplify right side
    16,645,323.60x = 321,242,784,150,461
  5. Step 5: Solve for x
    x = 321,242,784,150,461/16,645,323.60
  6. Step 6: Final answer
    x = 19,299,281.40

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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.