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Finding the Fourth Proportional to 28,772.20, 41,603.05 and 28,772.20

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Solution

The fourth proportional to 28,772.20, 41,603.05 and 28,772.20 is: 41,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.20 : 41,603.05 = 28,772.20 : x
  2. Step 2: Convert to fraction form
    28,772.20/41,603.05 = 28,772.20/x
  3. Step 3: Cross multiply
    28,772.20x = 41,603.05 × 28,772.20
  4. Step 4: Simplify right side
    28,772.20x = 1,197,011,275.21
  5. Step 5: Solve for x
    x = 1,197,011,275.21/28,772.20
  6. Step 6: Final answer
    x = 41,603.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.