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Finding the Fourth Proportional to 63,022.70, 86,973.18 and 34,730.20

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Solution

The fourth proportional to 63,022.70, 86,973.18 and 34,730.20 is: 47,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,022.70 : 86,973.18 = 34,730.20 : x
  2. Step 2: Convert to fraction form
    63,022.70/86,973.18 = 34,730.20/x
  3. Step 3: Cross multiply
    63,022.70x = 86,973.18 × 34,730.20
  4. Step 4: Simplify right side
    63,022.70x = 3,020,595,936.04
  5. Step 5: Solve for x
    x = 3,020,595,936.04/63,022.70
  6. Step 6: Final answer
    x = 47,928.70

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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.