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Finding the Third Proportional to 35,984,820 and 78,358,920

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Solution

The third proportional to 35,984,820 and 78,358,920 is: 170,630,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,984,820 : 78,358,920 = 78,358,920 : x
  2. Step 2: Convert to fraction form
    35,984,820/78,358,920 = 78,358,920/x
  3. Step 3: Cross multiply
    35,984,820x = 78,358,920 × 78,358,920
  4. Step 4: Simplify right side
    35,984,820x = 6,140,120,343,566,400
  5. Step 5: Solve for x
    x = 6,140,120,343,566,400/35,984,820
  6. Step 6: Final answer
    x = 170,630,847.77

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.