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Finding the Fourth Proportional to 8,957.56, 13,437.72 and 4,572.64

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Solution

The fourth proportional to 8,957.56, 13,437.72 and 4,572.64 is: 6,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.56 : 13,437.72 = 4,572.64 : x
  2. Step 2: Convert to fraction form
    8,957.56/13,437.72 = 4,572.64/x
  3. Step 3: Cross multiply
    8,957.56x = 13,437.72 × 4,572.64
  4. Step 4: Simplify right side
    8,957.56x = 61,445,855.98
  5. Step 5: Solve for x
    x = 61,445,855.98/8,957.56
  6. Step 6: Final answer
    x = 6,859.66

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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.