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Finding the Fourth Proportional to 19,264.32, 28,897.02 and 9,411.48

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Solution

The fourth proportional to 19,264.32, 28,897.02 and 9,411.48 is: 14,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.32 : 28,897.02 = 9,411.48 : x
  2. Step 2: Convert to fraction form
    19,264.32/28,897.02 = 9,411.48/x
  3. Step 3: Cross multiply
    19,264.32x = 28,897.02 × 9,411.48
  4. Step 4: Simplify right side
    19,264.32x = 271,963,725.79
  5. Step 5: Solve for x
    x = 271,963,725.79/19,264.32
  6. Step 6: Final answer
    x = 14,117.48

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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.