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Finding the Fourth Proportional to 8,907.72, 12,294.36 and 5,322.93

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Solution

The fourth proportional to 8,907.72, 12,294.36 and 5,322.93 is: 7,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.72 : 12,294.36 = 5,322.93 : x
  2. Step 2: Convert to fraction form
    8,907.72/12,294.36 = 5,322.93/x
  3. Step 3: Cross multiply
    8,907.72x = 12,294.36 × 5,322.93
  4. Step 4: Simplify right side
    8,907.72x = 65,442,017.67
  5. Step 5: Solve for x
    x = 65,442,017.67/8,907.72
  6. Step 6: Final answer
    x = 7,346.66

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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.