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Finding the Fourth Proportional to 35,441.60, 53,143.20 and 14,641.60

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Solution

The fourth proportional to 35,441.60, 53,143.20 and 14,641.60 is: 21,954.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,441.60 : 53,143.20 = 14,641.60 : x
  2. Step 2: Convert to fraction form
    35,441.60/53,143.20 = 14,641.60/x
  3. Step 3: Cross multiply
    35,441.60x = 53,143.20 × 14,641.60
  4. Step 4: Simplify right side
    35,441.60x = 778,101,477.12
  5. Step 5: Solve for x
    x = 778,101,477.12/35,441.60
  6. Step 6: Final answer
    x = 21,954.47

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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.