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Finding the Fourth Proportional to 5,887.76, 8,872.14 and 4,870.65

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Solution

The fourth proportional to 5,887.76, 8,872.14 and 4,870.65 is: 7,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.76 : 8,872.14 = 4,870.65 : x
  2. Step 2: Convert to fraction form
    5,887.76/8,872.14 = 4,870.65/x
  3. Step 3: Cross multiply
    5,887.76x = 8,872.14 × 4,870.65
  4. Step 4: Simplify right side
    5,887.76x = 43,213,088.69
  5. Step 5: Solve for x
    x = 43,213,088.69/5,887.76
  6. Step 6: Final answer
    x = 7,339.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.