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Finding the Fourth Proportional to 15,985,320.30, 23,977,980.45 and 15,985,320.30

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Solution

The fourth proportional to 15,985,320.30, 23,977,980.45 and 15,985,320.30 is: 23,977,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985,320.30 : 23,977,980.45 = 15,985,320.30 : x
  2. Step 2: Convert to fraction form
    15,985,320.30/23,977,980.45 = 15,985,320.30/x
  3. Step 3: Cross multiply
    15,985,320.30x = 23,977,980.45 × 15,985,320.30
  4. Step 4: Simplify right side
    15,985,320.30x = 383,295,697,640,388.12
  5. Step 5: Solve for x
    x = 383,295,697,640,388.12/15,985,320.30
  6. Step 6: Final answer
    x = 23,977,980.45

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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.