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Finding the Fourth Proportional to 47,307.90, 70,944.46 and 15,712.22

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Solution

The fourth proportional to 47,307.90, 70,944.46 and 15,712.22 is: 23,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,307.90 : 70,944.46 = 15,712.22 : x
  2. Step 2: Convert to fraction form
    47,307.90/70,944.46 = 15,712.22/x
  3. Step 3: Cross multiply
    47,307.90x = 70,944.46 × 15,712.22
  4. Step 4: Simplify right side
    47,307.90x = 1,114,694,963.30
  5. Step 5: Solve for x
    x = 1,114,694,963.30/47,307.90
  6. Step 6: Final answer
    x = 23,562.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.