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Finding the Fourth Proportional to 19,343.79, 29,018.07 and 7,497.77

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Solution

The fourth proportional to 19,343.79, 29,018.07 and 7,497.77 is: 11,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,343.79 : 29,018.07 = 7,497.77 : x
  2. Step 2: Convert to fraction form
    19,343.79/29,018.07 = 7,497.77/x
  3. Step 3: Cross multiply
    19,343.79x = 29,018.07 × 7,497.77
  4. Step 4: Simplify right side
    19,343.79x = 217,570,669.61
  5. Step 5: Solve for x
    x = 217,570,669.61/19,343.79
  6. Step 6: Final answer
    x = 11,247.57

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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.