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Finding the Fourth Proportional to 21,746,410.80, 32,630,113.80 and 15,342,874.80

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Solution

The fourth proportional to 21,746,410.80, 32,630,113.80 and 15,342,874.80 is: 23,021,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,746,410.80 : 32,630,113.80 = 15,342,874.80 : x
  2. Step 2: Convert to fraction form
    21,746,410.80/32,630,113.80 = 15,342,874.80/x
  3. Step 3: Cross multiply
    21,746,410.80x = 32,630,113.80 × 15,342,874.80
  4. Step 4: Simplify right side
    21,746,410.80x = 500,639,750,743,152.25
  5. Step 5: Solve for x
    x = 500,639,750,743,152.25/21,746,410.80
  6. Step 6: Final answer
    x = 23,021,718.63

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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.