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Finding the Fourth Proportional to 15,708.52, 23,510.94 and 13,980.52

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Solution

The fourth proportional to 15,708.52, 23,510.94 and 13,980.52 is: 20,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.52 : 23,510.94 = 13,980.52 : x
  2. Step 2: Convert to fraction form
    15,708.52/23,510.94 = 13,980.52/x
  3. Step 3: Cross multiply
    15,708.52x = 23,510.94 × 13,980.52
  4. Step 4: Simplify right side
    15,708.52x = 328,695,166.89
  5. Step 5: Solve for x
    x = 328,695,166.89/15,708.52
  6. Step 6: Final answer
    x = 20,924.64

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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.