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Finding the Fourth Proportional to 22,555.67, 31,122.50 and 12,483.63

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Solution

The fourth proportional to 22,555.67, 31,122.50 and 12,483.63 is: 17,225.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,555.67 : 31,122.50 = 12,483.63 : x
  2. Step 2: Convert to fraction form
    22,555.67/31,122.50 = 12,483.63/x
  3. Step 3: Cross multiply
    22,555.67x = 31,122.50 × 12,483.63
  4. Step 4: Simplify right side
    22,555.67x = 388,521,712.26
  5. Step 5: Solve for x
    x = 388,521,712.26/22,555.67
  6. Step 6: Final answer
    x = 17,225.02

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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.