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Finding the Fourth Proportional to 7,056.51, 9,737.91 and 3,869.99

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Solution

The fourth proportional to 7,056.51, 9,737.91 and 3,869.99 is: 5,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,056.51 : 9,737.91 = 3,869.99 : x
  2. Step 2: Convert to fraction form
    7,056.51/9,737.91 = 3,869.99/x
  3. Step 3: Cross multiply
    7,056.51x = 9,737.91 × 3,869.99
  4. Step 4: Simplify right side
    7,056.51x = 37,685,565.63
  5. Step 5: Solve for x
    x = 37,685,565.63/7,056.51
  6. Step 6: Final answer
    x = 5,340.54

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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.