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Finding the Fourth Proportional to 8,697,746.80, 13,041,954.60 and 3,643,346.80

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Solution

The fourth proportional to 8,697,746.80, 13,041,954.60 and 3,643,346.80 is: 5,463,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,746.80 : 13,041,954.60 = 3,643,346.80 : x
  2. Step 2: Convert to fraction form
    8,697,746.80/13,041,954.60 = 3,643,346.80/x
  3. Step 3: Cross multiply
    8,697,746.80x = 13,041,954.60 × 3,643,346.80
  4. Step 4: Simplify right side
    8,697,746.80x = 47,516,363,557,655.27
  5. Step 5: Solve for x
    x = 47,516,363,557,655.27/8,697,746.80
  6. Step 6: Final answer
    x = 5,463,065.85

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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.