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Finding the Fourth Proportional to 8,858,487.40, 13,269,068.70 and 8,858,487.40

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Solution

The fourth proportional to 8,858,487.40, 13,269,068.70 and 8,858,487.40 is: 13,269,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858,487.40 : 13,269,068.70 = 8,858,487.40 : x
  2. Step 2: Convert to fraction form
    8,858,487.40/13,269,068.70 = 8,858,487.40/x
  3. Step 3: Cross multiply
    8,858,487.40x = 13,269,068.70 × 8,858,487.40
  4. Step 4: Simplify right side
    8,858,487.40x = 117,543,877,888,684.38
  5. Step 5: Solve for x
    x = 117,543,877,888,684.38/8,858,487.40
  6. Step 6: Final answer
    x = 13,269,068.70

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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.