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Finding the Fourth Proportional to 9,907.62, 13,663.78 and 6,130.18

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Solution

The fourth proportional to 9,907.62, 13,663.78 and 6,130.18 is: 8,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.62 : 13,663.78 = 6,130.18 : x
  2. Step 2: Convert to fraction form
    9,907.62/13,663.78 = 6,130.18/x
  3. Step 3: Cross multiply
    9,907.62x = 13,663.78 × 6,130.18
  4. Step 4: Simplify right side
    9,907.62x = 83,761,430.88
  5. Step 5: Solve for x
    x = 83,761,430.88/9,907.62
  6. Step 6: Final answer
    x = 8,454.24

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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.