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Finding the Fourth Proportional to 8,963.55, 13,445.31 and 4,269.32

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Solution

The fourth proportional to 8,963.55, 13,445.31 and 4,269.32 is: 6,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.55 : 13,445.31 = 4,269.32 : x
  2. Step 2: Convert to fraction form
    8,963.55/13,445.31 = 4,269.32/x
  3. Step 3: Cross multiply
    8,963.55x = 13,445.31 × 4,269.32
  4. Step 4: Simplify right side
    8,963.55x = 57,402,393.71
  5. Step 5: Solve for x
    x = 57,402,393.71/8,963.55
  6. Step 6: Final answer
    x = 6,403.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.