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Finding the Fourth Proportional to 47,274.68, 70,911.80 and 13,994.94

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Solution

The fourth proportional to 47,274.68, 70,911.80 and 13,994.94 is: 20,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,274.68 : 70,911.80 = 13,994.94 : x
  2. Step 2: Convert to fraction form
    47,274.68/70,911.80 = 13,994.94/x
  3. Step 3: Cross multiply
    47,274.68x = 70,911.80 × 13,994.94
  4. Step 4: Simplify right side
    47,274.68x = 992,406,386.29
  5. Step 5: Solve for x
    x = 992,406,386.29/47,274.68
  6. Step 6: Final answer
    x = 20,992.34

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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.