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Finding the Fourth Proportional to 15,038.56, 20,737.92 and 9,069.04

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Solution

The fourth proportional to 15,038.56, 20,737.92 and 9,069.04 is: 12,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.56 : 20,737.92 = 9,069.04 : x
  2. Step 2: Convert to fraction form
    15,038.56/20,737.92 = 9,069.04/x
  3. Step 3: Cross multiply
    15,038.56x = 20,737.92 × 9,069.04
  4. Step 4: Simplify right side
    15,038.56x = 188,073,026.00
  5. Step 5: Solve for x
    x = 188,073,026.00/15,038.56
  6. Step 6: Final answer
    x = 12,506.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.