Home / 19,109.08-28,466.60-18,528.72

Finding the Fourth Proportional to 19,109.08, 28,466.60 and 18,528.72

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Solution

The fourth proportional to 19,109.08, 28,466.60 and 18,528.72 is: 27,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.08 : 28,466.60 = 18,528.72 : x
  2. Step 2: Convert to fraction form
    19,109.08/28,466.60 = 18,528.72/x
  3. Step 3: Cross multiply
    19,109.08x = 28,466.60 × 18,528.72
  4. Step 4: Simplify right side
    19,109.08x = 527,449,660.75
  5. Step 5: Solve for x
    x = 527,449,660.75/19,109.08
  6. Step 6: Final answer
    x = 27,602.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.