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Finding the Fourth Proportional to 19,607.62, 29,411.44 and 7,125.32

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Solution

The fourth proportional to 19,607.62, 29,411.44 and 7,125.32 is: 10,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.62 : 29,411.44 = 7,125.32 : x
  2. Step 2: Convert to fraction form
    19,607.62/29,411.44 = 7,125.32/x
  3. Step 3: Cross multiply
    19,607.62x = 29,411.44 × 7,125.32
  4. Step 4: Simplify right side
    19,607.62x = 209,565,921.66
  5. Step 5: Solve for x
    x = 209,565,921.66/19,607.62
  6. Step 6: Final answer
    x = 10,687.98

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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.