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Finding the Fourth Proportional to 14,155.58, 19,535.07 and 7,695.65

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Solution

The fourth proportional to 14,155.58, 19,535.07 and 7,695.65 is: 10,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.58 : 19,535.07 = 7,695.65 : x
  2. Step 2: Convert to fraction form
    14,155.58/19,535.07 = 7,695.65/x
  3. Step 3: Cross multiply
    14,155.58x = 19,535.07 × 7,695.65
  4. Step 4: Simplify right side
    14,155.58x = 150,335,061.45
  5. Step 5: Solve for x
    x = 150,335,061.45/14,155.58
  6. Step 6: Final answer
    x = 10,620.20

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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.