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Finding the Fourth Proportional to 17,038.80, 25,550.40 and 9,140.10

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Solution

The fourth proportional to 17,038.80, 25,550.40 and 9,140.10 is: 13,705.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,038.80 : 25,550.40 = 9,140.10 : x
  2. Step 2: Convert to fraction form
    17,038.80/25,550.40 = 9,140.10/x
  3. Step 3: Cross multiply
    17,038.80x = 25,550.40 × 9,140.10
  4. Step 4: Simplify right side
    17,038.80x = 233,533,211.04
  5. Step 5: Solve for x
    x = 233,533,211.04/17,038.80
  6. Step 6: Final answer
    x = 13,705.97

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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.