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Finding the Fourth Proportional to 7,193,632.38, 9,931,611.84 and 4,681,400.90

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Solution

The fourth proportional to 7,193,632.38, 9,931,611.84 and 4,681,400.90 is: 6,463,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193,632.38 : 9,931,611.84 = 4,681,400.90 : x
  2. Step 2: Convert to fraction form
    7,193,632.38/9,931,611.84 = 4,681,400.90/x
  3. Step 3: Cross multiply
    7,193,632.38x = 9,931,611.84 × 4,681,400.90
  4. Step 4: Simplify right side
    7,193,632.38x = 46,493,856,606,226.66
  5. Step 5: Solve for x
    x = 46,493,856,606,226.66/7,193,632.38
  6. Step 6: Final answer
    x = 6,463,196.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.