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Finding the Fourth Proportional to 23,980.71, 35,970.93 and 8,187.54

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Solution

The fourth proportional to 23,980.71, 35,970.93 and 8,187.54 is: 12,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,980.71 : 35,970.93 = 8,187.54 : x
  2. Step 2: Convert to fraction form
    23,980.71/35,970.93 = 8,187.54/x
  3. Step 3: Cross multiply
    23,980.71x = 35,970.93 × 8,187.54
  4. Step 4: Simplify right side
    23,980.71x = 294,513,428.21
  5. Step 5: Solve for x
    x = 294,513,428.21/23,980.71
  6. Step 6: Final answer
    x = 12,281.26

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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.