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Finding the Fourth Proportional to 5,312.24, 7,967.28 and 5,048.78

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Solution

The fourth proportional to 5,312.24, 7,967.28 and 5,048.78 is: 7,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.24 : 7,967.28 = 5,048.78 : x
  2. Step 2: Convert to fraction form
    5,312.24/7,967.28 = 5,048.78/x
  3. Step 3: Cross multiply
    5,312.24x = 7,967.28 × 5,048.78
  4. Step 4: Simplify right side
    5,312.24x = 40,225,043.92
  5. Step 5: Solve for x
    x = 40,225,043.92/5,312.24
  6. Step 6: Final answer
    x = 7,572.14

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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.