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Finding the Fourth Proportional to 30,892.60, 46,338.90 and 15,340.60

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Solution

The fourth proportional to 30,892.60, 46,338.90 and 15,340.60 is: 23,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,892.60 : 46,338.90 = 15,340.60 : x
  2. Step 2: Convert to fraction form
    30,892.60/46,338.90 = 15,340.60/x
  3. Step 3: Cross multiply
    30,892.60x = 46,338.90 × 15,340.60
  4. Step 4: Simplify right side
    30,892.60x = 710,866,529.34
  5. Step 5: Solve for x
    x = 710,866,529.34/30,892.60
  6. Step 6: Final answer
    x = 23,010.90

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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.