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Finding the Fourth Proportional to 28,614.25, 42,928.67 and 10,852.17

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Solution

The fourth proportional to 28,614.25, 42,928.67 and 10,852.17 is: 16,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.25 : 42,928.67 = 10,852.17 : x
  2. Step 2: Convert to fraction form
    28,614.25/42,928.67 = 10,852.17/x
  3. Step 3: Cross multiply
    28,614.25x = 42,928.67 × 10,852.17
  4. Step 4: Simplify right side
    28,614.25x = 465,868,955.81
  5. Step 5: Solve for x
    x = 465,868,955.81/28,614.25
  6. Step 6: Final answer
    x = 16,281.01

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1.5x scale

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.