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Finding the Fourth Proportional to 8,641.52, 11,925.43 and 5,283.63

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Solution

The fourth proportional to 8,641.52, 11,925.43 and 5,283.63 is: 7,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.52 : 11,925.43 = 5,283.63 : x
  2. Step 2: Convert to fraction form
    8,641.52/11,925.43 = 5,283.63/x
  3. Step 3: Cross multiply
    8,641.52x = 11,925.43 × 5,283.63
  4. Step 4: Simplify right side
    8,641.52x = 63,009,546.50
  5. Step 5: Solve for x
    x = 63,009,546.50/8,641.52
  6. Step 6: Final answer
    x = 7,291.49

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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.