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Finding the Fourth Proportional to 9,578.93, 14,368.42 and 2,915.49

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Solution

The fourth proportional to 9,578.93, 14,368.42 and 2,915.49 is: 4,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.93 : 14,368.42 = 2,915.49 : x
  2. Step 2: Convert to fraction form
    9,578.93/14,368.42 = 2,915.49/x
  3. Step 3: Cross multiply
    9,578.93x = 14,368.42 × 2,915.49
  4. Step 4: Simplify right side
    9,578.93x = 41,891,042.35
  5. Step 5: Solve for x
    x = 41,891,042.35/9,578.93
  6. Step 6: Final answer
    x = 4,373.25

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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.