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Finding the Fourth Proportional to 22,655.50, 31,264.63 and 12,583.68

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Solution

The fourth proportional to 22,655.50, 31,264.63 and 12,583.68 is: 17,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.50 : 31,264.63 = 12,583.68 : x
  2. Step 2: Convert to fraction form
    22,655.50/31,264.63 = 12,583.68/x
  3. Step 3: Cross multiply
    22,655.50x = 31,264.63 × 12,583.68
  4. Step 4: Simplify right side
    22,655.50x = 393,424,099.24
  5. Step 5: Solve for x
    x = 393,424,099.24/22,655.50
  6. Step 6: Final answer
    x = 17,365.50

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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.