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Finding the Fourth Proportional to 62,720.40, 94,080.06 and 15,973.20

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Solution

The fourth proportional to 62,720.40, 94,080.06 and 15,973.20 is: 23,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,720.40 : 94,080.06 = 15,973.20 : x
  2. Step 2: Convert to fraction form
    62,720.40/94,080.06 = 15,973.20/x
  3. Step 3: Cross multiply
    62,720.40x = 94,080.06 × 15,973.20
  4. Step 4: Simplify right side
    62,720.40x = 1,502,759,614.39
  5. Step 5: Solve for x
    x = 1,502,759,614.39/62,720.40
  6. Step 6: Final answer
    x = 23,959.66

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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.