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Finding the Fourth Proportional to 9,915.54, 14,859.51 and 6,587.70

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Solution

The fourth proportional to 9,915.54, 14,859.51 and 6,587.70 is: 9,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.54 : 14,859.51 = 6,587.70 : x
  2. Step 2: Convert to fraction form
    9,915.54/14,859.51 = 6,587.70/x
  3. Step 3: Cross multiply
    9,915.54x = 14,859.51 × 6,587.70
  4. Step 4: Simplify right side
    9,915.54x = 97,889,994.03
  5. Step 5: Solve for x
    x = 97,889,994.03/9,915.54
  6. Step 6: Final answer
    x = 9,872.38

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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.