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Finding the Fourth Proportional to 9,555.84, 14,320.80 and 7,099.92

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Solution

The fourth proportional to 9,555.84, 14,320.80 and 7,099.92 is: 10,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.84 : 14,320.80 = 7,099.92 : x
  2. Step 2: Convert to fraction form
    9,555.84/14,320.80 = 7,099.92/x
  3. Step 3: Cross multiply
    9,555.84x = 14,320.80 × 7,099.92
  4. Step 4: Simplify right side
    9,555.84x = 101,676,534.34
  5. Step 5: Solve for x
    x = 101,676,534.34/9,555.84
  6. Step 6: Final answer
    x = 10,640.25

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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.