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Finding the Fourth Proportional to 93,879, 129,551.58 and 53,616.24

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Solution

The fourth proportional to 93,879, 129,551.58 and 53,616.24 is: 73,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,879 : 129,551.58 = 53,616.24 : x
  2. Step 2: Convert to fraction form
    93,879/129,551.58 = 53,616.24/x
  3. Step 3: Cross multiply
    93,879x = 129,551.58 × 53,616.24
  4. Step 4: Simplify right side
    93,879x = 6,946,068,605.66
  5. Step 5: Solve for x
    x = 6,946,068,605.66/93,879
  6. Step 6: Final answer
    x = 73,989.59

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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.