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Finding the Fourth Proportional to 47,762.25, 65,892.65 and 28,866.57

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Solution

The fourth proportional to 47,762.25, 65,892.65 and 28,866.57 is: 39,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,762.25 : 65,892.65 = 28,866.57 : x
  2. Step 2: Convert to fraction form
    47,762.25/65,892.65 = 28,866.57/x
  3. Step 3: Cross multiply
    47,762.25x = 65,892.65 × 28,866.57
  4. Step 4: Simplify right side
    47,762.25x = 1,902,094,793.71
  5. Step 5: Solve for x
    x = 1,902,094,793.71/47,762.25
  6. Step 6: Final answer
    x = 39,824.23

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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.