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Finding the Fourth Proportional to 8,547.76, 11,785.60 and 5,562.48

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Solution

The fourth proportional to 8,547.76, 11,785.60 and 5,562.48 is: 7,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.76 : 11,785.60 = 5,562.48 : x
  2. Step 2: Convert to fraction form
    8,547.76/11,785.60 = 5,562.48/x
  3. Step 3: Cross multiply
    8,547.76x = 11,785.60 × 5,562.48
  4. Step 4: Simplify right side
    8,547.76x = 65,557,164.29
  5. Step 5: Solve for x
    x = 65,557,164.29/8,547.76
  6. Step 6: Final answer
    x = 7,669.51

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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.