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Finding the Fourth Proportional to 7,565.28, 10,440.06 and 4,253.28

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Solution

The fourth proportional to 7,565.28, 10,440.06 and 4,253.28 is: 5,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.28 : 10,440.06 = 4,253.28 : x
  2. Step 2: Convert to fraction form
    7,565.28/10,440.06 = 4,253.28/x
  3. Step 3: Cross multiply
    7,565.28x = 10,440.06 × 4,253.28
  4. Step 4: Simplify right side
    7,565.28x = 44,404,498.40
  5. Step 5: Solve for x
    x = 44,404,498.40/7,565.28
  6. Step 6: Final answer
    x = 5,869.51

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Double scale
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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.