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Finding the Fourth Proportional to 18,953.26, 28,419.83 and 5,802.10

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Solution

The fourth proportional to 18,953.26, 28,419.83 and 5,802.10 is: 8,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.26 : 28,419.83 = 5,802.10 : x
  2. Step 2: Convert to fraction form
    18,953.26/28,419.83 = 5,802.10/x
  3. Step 3: Cross multiply
    18,953.26x = 28,419.83 × 5,802.10
  4. Step 4: Simplify right side
    18,953.26x = 164,894,617.34
  5. Step 5: Solve for x
    x = 164,894,617.34/18,953.26
  6. Step 6: Final answer
    x = 8,700.07

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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.