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Finding the Fourth Proportional to 19,079.16, 28,591.06 and 9,706.15

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Solution

The fourth proportional to 19,079.16, 28,591.06 and 9,706.15 is: 14,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.16 : 28,591.06 = 9,706.15 : x
  2. Step 2: Convert to fraction form
    19,079.16/28,591.06 = 9,706.15/x
  3. Step 3: Cross multiply
    19,079.16x = 28,591.06 × 9,706.15
  4. Step 4: Simplify right side
    19,079.16x = 277,509,117.02
  5. Step 5: Solve for x
    x = 277,509,117.02/19,079.16
  6. Step 6: Final answer
    x = 14,545.14

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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.