Home / 47,005.16-70,500.80-13,716.28

Finding the Fourth Proportional to 47,005.16, 70,500.80 and 13,716.28

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Solution

The fourth proportional to 47,005.16, 70,500.80 and 13,716.28 is: 20,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,005.16 : 70,500.80 = 13,716.28 : x
  2. Step 2: Convert to fraction form
    47,005.16/70,500.80 = 13,716.28/x
  3. Step 3: Cross multiply
    47,005.16x = 70,500.80 × 13,716.28
  4. Step 4: Simplify right side
    47,005.16x = 967,008,713.02
  5. Step 5: Solve for x
    x = 967,008,713.02/47,005.16
  6. Step 6: Final answer
    x = 20,572.39

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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.