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Finding the Fourth Proportional to 28,973,856.30, 40,623,118.50 and 28,973,856.30

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Solution

The fourth proportional to 28,973,856.30, 40,623,118.50 and 28,973,856.30 is: 40,623,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,856.30 : 40,623,118.50 = 28,973,856.30 : x
  2. Step 2: Convert to fraction form
    28,973,856.30/40,623,118.50 = 28,973,856.30/x
  3. Step 3: Cross multiply
    28,973,856.30x = 40,623,118.50 × 28,973,856.30
  4. Step 4: Simplify right side
    28,973,856.30x = 1,177,008,397,876,871.50
  5. Step 5: Solve for x
    x = 1,177,008,397,876,871.50/28,973,856.30
  6. Step 6: Final answer
    x = 40,623,118.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.