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Finding the Fourth Proportional to 12,045.24, 18,073.62 and 7,437.24

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Solution

The fourth proportional to 12,045.24, 18,073.62 and 7,437.24 is: 11,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.24 : 18,073.62 = 7,437.24 : x
  2. Step 2: Convert to fraction form
    12,045.24/18,073.62 = 7,437.24/x
  3. Step 3: Cross multiply
    12,045.24x = 18,073.62 × 7,437.24
  4. Step 4: Simplify right side
    12,045.24x = 134,417,849.61
  5. Step 5: Solve for x
    x = 134,417,849.61/12,045.24
  6. Step 6: Final answer
    x = 11,159.42

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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.