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Finding the Fourth Proportional to 47,906.60, 71,870.70 and 14,628.20

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Solution

The fourth proportional to 47,906.60, 71,870.70 and 14,628.20 is: 21,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,906.60 : 71,870.70 = 14,628.20 : x
  2. Step 2: Convert to fraction form
    47,906.60/71,870.70 = 14,628.20/x
  3. Step 3: Cross multiply
    47,906.60x = 71,870.70 × 14,628.20
  4. Step 4: Simplify right side
    47,906.60x = 1,051,338,973.74
  5. Step 5: Solve for x
    x = 1,051,338,973.74/47,906.60
  6. Step 6: Final answer
    x = 21,945.60

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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.