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Finding the Fourth Proportional to 15,857,281.35, 22,152,364.20 and 15,857,281.35

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Solution

The fourth proportional to 15,857,281.35, 22,152,364.20 and 15,857,281.35 is: 22,152,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857,281.35 : 22,152,364.20 = 15,857,281.35 : x
  2. Step 2: Convert to fraction form
    15,857,281.35/22,152,364.20 = 15,857,281.35/x
  3. Step 3: Cross multiply
    15,857,281.35x = 22,152,364.20 × 15,857,281.35
  4. Step 4: Simplify right side
    15,857,281.35x = 351,276,271,687,067.62
  5. Step 5: Solve for x
    x = 351,276,271,687,067.62/15,857,281.35
  6. Step 6: Final answer
    x = 22,152,364.20

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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.