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Finding the Fourth Proportional to 68,684.79, 94,783.90 and 38,470.01

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Solution

The fourth proportional to 68,684.79, 94,783.90 and 38,470.01 is: 53,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,684.79 : 94,783.90 = 38,470.01 : x
  2. Step 2: Convert to fraction form
    68,684.79/94,783.90 = 38,470.01/x
  3. Step 3: Cross multiply
    68,684.79x = 94,783.90 × 38,470.01
  4. Step 4: Simplify right side
    68,684.79x = 3,646,337,774.42
  5. Step 5: Solve for x
    x = 3,646,337,774.42/68,684.79
  6. Step 6: Final answer
    x = 53,088.00

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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.