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Finding the Fourth Proportional to 15,906.70, 22,300.10 and 15,906.70

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Solution

The fourth proportional to 15,906.70, 22,300.10 and 15,906.70 is: 22,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,906.70 : 22,300.10 = 15,906.70 : x
  2. Step 2: Convert to fraction form
    15,906.70/22,300.10 = 15,906.70/x
  3. Step 3: Cross multiply
    15,906.70x = 22,300.10 × 15,906.70
  4. Step 4: Simplify right side
    15,906.70x = 354,721,000.67
  5. Step 5: Solve for x
    x = 354,721,000.67/15,906.70
  6. Step 6: Final answer
    x = 22,300.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.