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Finding the Fourth Proportional to 65,927.79, 90,980.79 and 35,713.12

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Solution

The fourth proportional to 65,927.79, 90,980.79 and 35,713.12 is: 49,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,927.79 : 90,980.79 = 35,713.12 : x
  2. Step 2: Convert to fraction form
    65,927.79/90,980.79 = 35,713.12/x
  3. Step 3: Cross multiply
    65,927.79x = 90,980.79 × 35,713.12
  4. Step 4: Simplify right side
    65,927.79x = 3,249,207,416.06
  5. Step 5: Solve for x
    x = 3,249,207,416.06/65,927.79
  6. Step 6: Final answer
    x = 49,284.34

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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.