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Finding the Fourth Proportional to 46,564.60, 69,849.60 and 13,287.10

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Solution

The fourth proportional to 46,564.60, 69,849.60 and 13,287.10 is: 19,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,564.60 : 69,849.60 = 13,287.10 : x
  2. Step 2: Convert to fraction form
    46,564.60/69,849.60 = 13,287.10/x
  3. Step 3: Cross multiply
    46,564.60x = 69,849.60 × 13,287.10
  4. Step 4: Simplify right side
    46,564.60x = 928,098,620.16
  5. Step 5: Solve for x
    x = 928,098,620.16/46,564.60
  6. Step 6: Final answer
    x = 19,931.42

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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.