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Finding the Fourth Proportional to 8,700.98, 12,007.34 and 4,924.07

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Solution

The fourth proportional to 8,700.98, 12,007.34 and 4,924.07 is: 6,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.98 : 12,007.34 = 4,924.07 : x
  2. Step 2: Convert to fraction form
    8,700.98/12,007.34 = 4,924.07/x
  3. Step 3: Cross multiply
    8,700.98x = 12,007.34 × 4,924.07
  4. Step 4: Simplify right side
    8,700.98x = 59,125,029.05
  5. Step 5: Solve for x
    x = 59,125,029.05/8,700.98
  6. Step 6: Final answer
    x = 6,795.22

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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.