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Finding the Fourth Proportional to 8,917.98, 12,307.59 and 7,596.06

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Solution

The fourth proportional to 8,917.98, 12,307.59 and 7,596.06 is: 10,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.98 : 12,307.59 = 7,596.06 : x
  2. Step 2: Convert to fraction form
    8,917.98/12,307.59 = 7,596.06/x
  3. Step 3: Cross multiply
    8,917.98x = 12,307.59 × 7,596.06
  4. Step 4: Simplify right side
    8,917.98x = 93,489,192.10
  5. Step 5: Solve for x
    x = 93,489,192.10/8,917.98
  6. Step 6: Final answer
    x = 10,483.23

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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.