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Finding the Fourth Proportional to 8,889,809.10, 13,334,713.65 and 5,299,629.90

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Solution

The fourth proportional to 8,889,809.10, 13,334,713.65 and 5,299,629.90 is: 7,949,444.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,809.10 : 13,334,713.65 = 5,299,629.90 : x
  2. Step 2: Convert to fraction form
    8,889,809.10/13,334,713.65 = 5,299,629.90/x
  3. Step 3: Cross multiply
    8,889,809.10x = 13,334,713.65 × 5,299,629.90
  4. Step 4: Simplify right side
    8,889,809.10x = 70,669,047,167,478.14
  5. Step 5: Solve for x
    x = 70,669,047,167,478.14/8,889,809.10
  6. Step 6: Final answer
    x = 7,949,444.85

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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.