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Finding the Fourth Proportional to 7,312.63, 10,088.19 and 5,079.88

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Solution

The fourth proportional to 7,312.63, 10,088.19 and 5,079.88 is: 7,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.63 : 10,088.19 = 5,079.88 : x
  2. Step 2: Convert to fraction form
    7,312.63/10,088.19 = 5,079.88/x
  3. Step 3: Cross multiply
    7,312.63x = 10,088.19 × 5,079.88
  4. Step 4: Simplify right side
    7,312.63x = 51,246,794.62
  5. Step 5: Solve for x
    x = 51,246,794.62/7,312.63
  6. Step 6: Final answer
    x = 7,007.98

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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.