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Finding the Fourth Proportional to 15,411.80, 23,117.80 and 5,023.55

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Solution

The fourth proportional to 15,411.80, 23,117.80 and 5,023.55 is: 7,535.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.80 : 23,117.80 = 5,023.55 : x
  2. Step 2: Convert to fraction form
    15,411.80/23,117.80 = 5,023.55/x
  3. Step 3: Cross multiply
    15,411.80x = 23,117.80 × 5,023.55
  4. Step 4: Simplify right side
    15,411.80x = 116,133,494.54
  5. Step 5: Solve for x
    x = 116,133,494.54/15,411.80
  6. Step 6: Final answer
    x = 7,535.36

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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.