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Finding the Fourth Proportional to 62,720.88, 86,554.77 and 35,496.47

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Solution

The fourth proportional to 62,720.88, 86,554.77 and 35,496.47 is: 48,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,720.88 : 86,554.77 = 35,496.47 : x
  2. Step 2: Convert to fraction form
    62,720.88/86,554.77 = 35,496.47/x
  3. Step 3: Cross multiply
    62,720.88x = 86,554.77 × 35,496.47
  4. Step 4: Simplify right side
    62,720.88x = 3,072,388,363.89
  5. Step 5: Solve for x
    x = 3,072,388,363.89/62,720.88
  6. Step 6: Final answer
    x = 48,985.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.