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Finding the Fourth Proportional to 23,903.78, 35,865.76 and 12,807.50

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Solution

The fourth proportional to 23,903.78, 35,865.76 and 12,807.50 is: 19,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,903.78 : 35,865.76 = 12,807.50 : x
  2. Step 2: Convert to fraction form
    23,903.78/35,865.76 = 12,807.50/x
  3. Step 3: Cross multiply
    23,903.78x = 35,865.76 × 12,807.50
  4. Step 4: Simplify right side
    23,903.78x = 459,350,721.20
  5. Step 5: Solve for x
    x = 459,350,721.20/23,903.78
  6. Step 6: Final answer
    x = 19,216.66

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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.