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Finding the Fourth Proportional to 8,655,693.48, 12,984,721.74 and 3,605,823

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Solution

The fourth proportional to 8,655,693.48, 12,984,721.74 and 3,605,823 is: 5,409,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655,693.48 : 12,984,721.74 = 3,605,823 : x
  2. Step 2: Convert to fraction form
    8,655,693.48/12,984,721.74 = 3,605,823/x
  3. Step 3: Cross multiply
    8,655,693.48x = 12,984,721.74 × 3,605,823
  4. Step 4: Simplify right side
    8,655,693.48x = 46,820,608,298,692.02
  5. Step 5: Solve for x
    x = 46,820,608,298,692.02/8,655,693.48
  6. Step 6: Final answer
    x = 5,409,226.70

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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.