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Finding the Fourth Proportional to 8,859,669.89, 12,226,352.65 and 4,785,288.89

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Solution

The fourth proportional to 8,859,669.89, 12,226,352.65 and 4,785,288.89 is: 6,603,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,669.89 : 12,226,352.65 = 4,785,288.89 : x
  2. Step 2: Convert to fraction form
    8,859,669.89/12,226,352.65 = 4,785,288.89/x
  3. Step 3: Cross multiply
    8,859,669.89x = 12,226,352.65 × 4,785,288.89
  4. Step 4: Simplify right side
    8,859,669.89x = 58,506,629,510,406.32
  5. Step 5: Solve for x
    x = 58,506,629,510,406.32/8,859,669.89
  6. Step 6: Final answer
    x = 6,603,703.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.