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Finding the Fourth Proportional to 9,907.52, 14,863.56 and 2,887.64

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Solution

The fourth proportional to 9,907.52, 14,863.56 and 2,887.64 is: 4,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.52 : 14,863.56 = 2,887.64 : x
  2. Step 2: Convert to fraction form
    9,907.52/14,863.56 = 2,887.64/x
  3. Step 3: Cross multiply
    9,907.52x = 14,863.56 × 2,887.64
  4. Step 4: Simplify right side
    9,907.52x = 42,920,610.40
  5. Step 5: Solve for x
    x = 42,920,610.40/9,907.52
  6. Step 6: Final answer
    x = 4,332.12

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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.