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Finding the Fourth Proportional to 8,723.79, 12,038.93 and 4,744.99

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Solution

The fourth proportional to 8,723.79, 12,038.93 and 4,744.99 is: 6,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.79 : 12,038.93 = 4,744.99 : x
  2. Step 2: Convert to fraction form
    8,723.79/12,038.93 = 4,744.99/x
  3. Step 3: Cross multiply
    8,723.79x = 12,038.93 × 4,744.99
  4. Step 4: Simplify right side
    8,723.79x = 57,124,602.46
  5. Step 5: Solve for x
    x = 57,124,602.46/8,723.79
  6. Step 6: Final answer
    x = 6,548.14

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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.