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Finding the Fourth Proportional to 8,992,242.70, 13,488,364.05 and 8,047,458.70

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Solution

The fourth proportional to 8,992,242.70, 13,488,364.05 and 8,047,458.70 is: 12,071,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992,242.70 : 13,488,364.05 = 8,047,458.70 : x
  2. Step 2: Convert to fraction form
    8,992,242.70/13,488,364.05 = 8,047,458.70/x
  3. Step 3: Cross multiply
    8,992,242.70x = 13,488,364.05 × 8,047,458.70
  4. Step 4: Simplify right side
    8,992,242.70x = 108,547,052,622,939.75
  5. Step 5: Solve for x
    x = 108,547,052,622,939.75/8,992,242.70
  6. Step 6: Final answer
    x = 12,071,188.05

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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.