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Finding the Fourth Proportional to 19,405.98, 29,106.54 and 6,256.98

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Solution

The fourth proportional to 19,405.98, 29,106.54 and 6,256.98 is: 9,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.98 : 29,106.54 = 6,256.98 : x
  2. Step 2: Convert to fraction form
    19,405.98/29,106.54 = 6,256.98/x
  3. Step 3: Cross multiply
    19,405.98x = 29,106.54 × 6,256.98
  4. Step 4: Simplify right side
    19,405.98x = 182,119,038.65
  5. Step 5: Solve for x
    x = 182,119,038.65/19,405.98
  6. Step 6: Final answer
    x = 9,384.69

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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.