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Finding the Fourth Proportional to 86,001.84, 118,678.52 and 47,763.86

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Solution

The fourth proportional to 86,001.84, 118,678.52 and 47,763.86 is: 65,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,001.84 : 118,678.52 = 47,763.86 : x
  2. Step 2: Convert to fraction form
    86,001.84/118,678.52 = 47,763.86/x
  3. Step 3: Cross multiply
    86,001.84x = 118,678.52 × 47,763.86
  4. Step 4: Simplify right side
    86,001.84x = 5,668,544,630.39
  5. Step 5: Solve for x
    x = 5,668,544,630.39/86,001.84
  6. Step 6: Final answer
    x = 65,911.90

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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.