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Finding the Fourth Proportional to 10,471,975.20, 15,695,521.20 and 4,406,695.20

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Solution

The fourth proportional to 10,471,975.20, 15,695,521.20 and 4,406,695.20 is: 6,604,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471,975.20 : 15,695,521.20 = 4,406,695.20 : x
  2. Step 2: Convert to fraction form
    10,471,975.20/15,695,521.20 = 4,406,695.20/x
  3. Step 3: Cross multiply
    10,471,975.20x = 15,695,521.20 × 4,406,695.20
  4. Step 4: Simplify right side
    10,471,975.20x = 69,165,377,933,538.24
  5. Step 5: Solve for x
    x = 69,165,377,933,538.24/10,471,975.20
  6. Step 6: Final answer
    x = 6,604,807.27

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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.