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Finding the Fourth Proportional to 9,291,405.90, 13,937,108.85 and 9,291,405.90

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Solution

The fourth proportional to 9,291,405.90, 13,937,108.85 and 9,291,405.90 is: 13,937,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291,405.90 : 13,937,108.85 = 9,291,405.90 : x
  2. Step 2: Convert to fraction form
    9,291,405.90/13,937,108.85 = 9,291,405.90/x
  3. Step 3: Cross multiply
    9,291,405.90x = 13,937,108.85 × 9,291,405.90
  4. Step 4: Simplify right side
    9,291,405.90x = 129,495,335,397,832.22
  5. Step 5: Solve for x
    x = 129,495,335,397,832.22/9,291,405.90
  6. Step 6: Final answer
    x = 13,937,108.85

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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.