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Finding the Fourth Proportional to 23,658.78, 32,649.15 and 12,903.69

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Solution

The fourth proportional to 23,658.78, 32,649.15 and 12,903.69 is: 17,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,658.78 : 32,649.15 = 12,903.69 : x
  2. Step 2: Convert to fraction form
    23,658.78/32,649.15 = 12,903.69/x
  3. Step 3: Cross multiply
    23,658.78x = 32,649.15 × 12,903.69
  4. Step 4: Simplify right side
    23,658.78x = 421,294,510.36
  5. Step 5: Solve for x
    x = 421,294,510.36/23,658.78
  6. Step 6: Final answer
    x = 17,807.11

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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.