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Finding the Fourth Proportional to 14,342.16, 19,792.04 and 7,881.91

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Solution

The fourth proportional to 14,342.16, 19,792.04 and 7,881.91 is: 10,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.16 : 19,792.04 = 7,881.91 : x
  2. Step 2: Convert to fraction form
    14,342.16/19,792.04 = 7,881.91/x
  3. Step 3: Cross multiply
    14,342.16x = 19,792.04 × 7,881.91
  4. Step 4: Simplify right side
    14,342.16x = 155,998,969.18
  5. Step 5: Solve for x
    x = 155,998,969.18/14,342.16
  6. Step 6: Final answer
    x = 10,876.95

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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.