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Finding the Fourth Proportional to 7,390.76, 11,068.52 and 4,264.24

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Solution

The fourth proportional to 7,390.76, 11,068.52 and 4,264.24 is: 6,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.76 : 11,068.52 = 4,264.24 : x
  2. Step 2: Convert to fraction form
    7,390.76/11,068.52 = 4,264.24/x
  3. Step 3: Cross multiply
    7,390.76x = 11,068.52 × 4,264.24
  4. Step 4: Simplify right side
    7,390.76x = 47,198,825.72
  5. Step 5: Solve for x
    x = 47,198,825.72/7,390.76
  6. Step 6: Final answer
    x = 6,386.19

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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.