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Finding the Fourth Proportional to 93,879, 129,563.87 and 53,598.51

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Solution

The fourth proportional to 93,879, 129,563.87 and 53,598.51 is: 73,972.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,879 : 129,563.87 = 53,598.51 : x
  2. Step 2: Convert to fraction form
    93,879/129,563.87 = 53,598.51/x
  3. Step 3: Cross multiply
    93,879x = 129,563.87 × 53,598.51
  4. Step 4: Simplify right side
    93,879x = 6,944,430,113.84
  5. Step 5: Solve for x
    x = 6,944,430,113.84/93,879
  6. Step 6: Final answer
    x = 73,972.14

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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.