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Finding the Fourth Proportional to 15,510.39, 23,265.22 and 4,980.39

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Solution

The fourth proportional to 15,510.39, 23,265.22 and 4,980.39 is: 7,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.39 : 23,265.22 = 4,980.39 : x
  2. Step 2: Convert to fraction form
    15,510.39/23,265.22 = 4,980.39/x
  3. Step 3: Cross multiply
    15,510.39x = 23,265.22 × 4,980.39
  4. Step 4: Simplify right side
    15,510.39x = 115,869,810.87
  5. Step 5: Solve for x
    x = 115,869,810.87/15,510.39
  6. Step 6: Final answer
    x = 7,470.47

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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.