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Finding the Fourth Proportional to 47,338.71, 71,017.79 and 19,258.70

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Solution

The fourth proportional to 47,338.71, 71,017.79 and 19,258.70 is: 28,892.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,338.71 : 71,017.79 = 19,258.70 : x
  2. Step 2: Convert to fraction form
    47,338.71/71,017.79 = 19,258.70/x
  3. Step 3: Cross multiply
    47,338.71x = 71,017.79 × 19,258.70
  4. Step 4: Simplify right side
    47,338.71x = 1,367,710,312.27
  5. Step 5: Solve for x
    x = 1,367,710,312.27/47,338.71
  6. Step 6: Final answer
    x = 28,892.01

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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.