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Finding the Fourth Proportional to 8,592.16, 12,888.24 and 5,688.88

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Solution

The fourth proportional to 8,592.16, 12,888.24 and 5,688.88 is: 8,533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.16 : 12,888.24 = 5,688.88 : x
  2. Step 2: Convert to fraction form
    8,592.16/12,888.24 = 5,688.88/x
  3. Step 3: Cross multiply
    8,592.16x = 12,888.24 × 5,688.88
  4. Step 4: Simplify right side
    8,592.16x = 73,319,650.77
  5. Step 5: Solve for x
    x = 73,319,650.77/8,592.16
  6. Step 6: Final answer
    x = 8,533.32

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Similar ratio
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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.