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Finding the Fourth Proportional to 8,775,680.10, 13,139,900.55 and 8,775,680.10

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Solution

The fourth proportional to 8,775,680.10, 13,139,900.55 and 8,775,680.10 is: 13,139,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775,680.10 : 13,139,900.55 = 8,775,680.10 : x
  2. Step 2: Convert to fraction form
    8,775,680.10/13,139,900.55 = 8,775,680.10/x
  3. Step 3: Cross multiply
    8,775,680.10x = 13,139,900.55 × 8,775,680.10
  4. Step 4: Simplify right side
    8,775,680.10x = 115,311,563,772,614.06
  5. Step 5: Solve for x
    x = 115,311,563,772,614.06/8,775,680.10
  6. Step 6: Final answer
    x = 13,139,900.55

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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.