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Finding the Fourth Proportional to 9,670.32, 13,346.16 and 5,479.32

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Solution

The fourth proportional to 9,670.32, 13,346.16 and 5,479.32 is: 7,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.32 : 13,346.16 = 5,479.32 : x
  2. Step 2: Convert to fraction form
    9,670.32/13,346.16 = 5,479.32/x
  3. Step 3: Cross multiply
    9,670.32x = 13,346.16 × 5,479.32
  4. Step 4: Simplify right side
    9,670.32x = 73,127,881.41
  5. Step 5: Solve for x
    x = 73,127,881.41/9,670.32
  6. Step 6: Final answer
    x = 7,562.10

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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.