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Finding the Fourth Proportional to 14,455.52, 19,952 and 9,411.04

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Solution

The fourth proportional to 14,455.52, 19,952 and 9,411.04 is: 12,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.52 : 19,952 = 9,411.04 : x
  2. Step 2: Convert to fraction form
    14,455.52/19,952 = 9,411.04/x
  3. Step 3: Cross multiply
    14,455.52x = 19,952 × 9,411.04
  4. Step 4: Simplify right side
    14,455.52x = 187,769,070.08
  5. Step 5: Solve for x
    x = 187,769,070.08/14,455.52
  6. Step 6: Final answer
    x = 12,989.44

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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.