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Finding the Fourth Proportional to 10,656,803.70, 15,985,205.55 and 10,656,803.70

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Solution

The fourth proportional to 10,656,803.70, 15,985,205.55 and 10,656,803.70 is: 15,985,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656,803.70 : 15,985,205.55 = 10,656,803.70 : x
  2. Step 2: Convert to fraction form
    10,656,803.70/15,985,205.55 = 10,656,803.70/x
  3. Step 3: Cross multiply
    10,656,803.70x = 15,985,205.55 × 10,656,803.70
  4. Step 4: Simplify right side
    10,656,803.70x = 170,351,197,650,500.53
  5. Step 5: Solve for x
    x = 170,351,197,650,500.53/10,656,803.70
  6. Step 6: Final answer
    x = 15,985,205.55

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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.