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Finding the Fourth Proportional to 6,886.32, 9,503.07 and 3,742.50

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Solution

The fourth proportional to 6,886.32, 9,503.07 and 3,742.50 is: 5,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.32 : 9,503.07 = 3,742.50 : x
  2. Step 2: Convert to fraction form
    6,886.32/9,503.07 = 3,742.50/x
  3. Step 3: Cross multiply
    6,886.32x = 9,503.07 × 3,742.50
  4. Step 4: Simplify right side
    6,886.32x = 35,565,282.13
  5. Step 5: Solve for x
    x = 35,565,282.13/6,886.32
  6. Step 6: Final answer
    x = 5,164.63

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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.