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Finding the Fourth Proportional to 79,593.76, 109,802.56 and 47,707.32

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Solution

The fourth proportional to 79,593.76, 109,802.56 and 47,707.32 is: 65,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,593.76 : 109,802.56 = 47,707.32 : x
  2. Step 2: Convert to fraction form
    79,593.76/109,802.56 = 47,707.32/x
  3. Step 3: Cross multiply
    79,593.76x = 109,802.56 × 47,707.32
  4. Step 4: Simplify right side
    79,593.76x = 5,238,385,866.74
  5. Step 5: Solve for x
    x = 5,238,385,866.74/79,593.76
  6. Step 6: Final answer
    x = 65,814.03

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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.