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Finding the Fourth Proportional to 15,901.20, 22,292.40 and 15,901.20

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Solution

The fourth proportional to 15,901.20, 22,292.40 and 15,901.20 is: 22,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.20 : 22,292.40 = 15,901.20 : x
  2. Step 2: Convert to fraction form
    15,901.20/22,292.40 = 15,901.20/x
  3. Step 3: Cross multiply
    15,901.20x = 22,292.40 × 15,901.20
  4. Step 4: Simplify right side
    15,901.20x = 354,475,910.88
  5. Step 5: Solve for x
    x = 354,475,910.88/15,901.20
  6. Step 6: Final answer
    x = 22,292.40

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Half scale
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Double scale
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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.