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Finding the Fourth Proportional to 62,988.85, 86,924.59 and 34,694.54

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Solution

The fourth proportional to 62,988.85, 86,924.59 and 34,694.54 is: 47,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.85 : 86,924.59 = 34,694.54 : x
  2. Step 2: Convert to fraction form
    62,988.85/86,924.59 = 34,694.54/x
  3. Step 3: Cross multiply
    62,988.85x = 86,924.59 × 34,694.54
  4. Step 4: Simplify right side
    62,988.85x = 3,015,808,420.03
  5. Step 5: Solve for x
    x = 3,015,808,420.03/62,988.85
  6. Step 6: Final answer
    x = 47,878.45

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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.