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Finding the Fourth Proportional to 86,048.46, 118,747.35 and 47,808.06

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Solution

The fourth proportional to 86,048.46, 118,747.35 and 47,808.06 is: 65,975.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,048.46 : 118,747.35 = 47,808.06 : x
  2. Step 2: Convert to fraction form
    86,048.46/118,747.35 = 47,808.06/x
  3. Step 3: Cross multiply
    86,048.46x = 118,747.35 × 47,808.06
  4. Step 4: Simplify right side
    86,048.46x = 5,677,080,433.64
  5. Step 5: Solve for x
    x = 5,677,080,433.64/86,048.46
  6. Step 6: Final answer
    x = 65,975.39

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1.5x scale

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.