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Finding the Fourth Proportional to 83,601.58, 115,368.62 and 47,302.64

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Solution

The fourth proportional to 83,601.58, 115,368.62 and 47,302.64 is: 65,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,601.58 : 115,368.62 = 47,302.64 : x
  2. Step 2: Convert to fraction form
    83,601.58/115,368.62 = 47,302.64/x
  3. Step 3: Cross multiply
    83,601.58x = 115,368.62 × 47,302.64
  4. Step 4: Simplify right side
    83,601.58x = 5,457,240,299.16
  5. Step 5: Solve for x
    x = 5,457,240,299.16/83,601.58
  6. Step 6: Final answer
    x = 65,276.76

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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.