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Finding the Fourth Proportional to 12,473.80, 18,695.10 and 6,235.56

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Solution

The fourth proportional to 12,473.80, 18,695.10 and 6,235.56 is: 9,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.80 : 18,695.10 = 6,235.56 : x
  2. Step 2: Convert to fraction form
    12,473.80/18,695.10 = 6,235.56/x
  3. Step 3: Cross multiply
    12,473.80x = 18,695.10 × 6,235.56
  4. Step 4: Simplify right side
    12,473.80x = 116,574,417.76
  5. Step 5: Solve for x
    x = 116,574,417.76/12,473.80
  6. Step 6: Final answer
    x = 9,345.54

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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.