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Finding the Fourth Proportional to 43,203.63, 64,834.61 and 15,123.92

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Solution

The fourth proportional to 43,203.63, 64,834.61 and 15,123.92 is: 22,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,203.63 : 64,834.61 = 15,123.92 : x
  2. Step 2: Convert to fraction form
    43,203.63/64,834.61 = 15,123.92/x
  3. Step 3: Cross multiply
    43,203.63x = 64,834.61 × 15,123.92
  4. Step 4: Simplify right side
    43,203.63x = 980,553,140.15
  5. Step 5: Solve for x
    x = 980,553,140.15/43,203.63
  6. Step 6: Final answer
    x = 22,696.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.