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Finding the Fourth Proportional to 15,913.80, 23,870.70 and 14,528.70

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Solution

The fourth proportional to 15,913.80, 23,870.70 and 14,528.70 is: 21,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.80 : 23,870.70 = 14,528.70 : x
  2. Step 2: Convert to fraction form
    15,913.80/23,870.70 = 14,528.70/x
  3. Step 3: Cross multiply
    15,913.80x = 23,870.70 × 14,528.70
  4. Step 4: Simplify right side
    15,913.80x = 346,810,239.09
  5. Step 5: Solve for x
    x = 346,810,239.09/15,913.80
  6. Step 6: Final answer
    x = 21,793.05

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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.