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Finding the Fourth Proportional to 16,389,907.60, 24,584,861.40 and 7,886,851.60

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Solution

The fourth proportional to 16,389,907.60, 24,584,861.40 and 7,886,851.60 is: 11,830,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389,907.60 : 24,584,861.40 = 7,886,851.60 : x
  2. Step 2: Convert to fraction form
    16,389,907.60/24,584,861.40 = 7,886,851.60/x
  3. Step 3: Cross multiply
    16,389,907.60x = 24,584,861.40 × 7,886,851.60
  4. Step 4: Simplify right side
    16,389,907.60x = 193,897,153,468,368.22
  5. Step 5: Solve for x
    x = 193,897,153,468,368.22/16,389,907.60
  6. Step 6: Final answer
    x = 11,830,277.40

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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.