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Finding the Fourth Proportional to 84,803.10, 117,019.58 and 49,004.64

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Solution

The fourth proportional to 84,803.10, 117,019.58 and 49,004.64 is: 67,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,803.10 : 117,019.58 = 49,004.64 : x
  2. Step 2: Convert to fraction form
    84,803.10/117,019.58 = 49,004.64/x
  3. Step 3: Cross multiply
    84,803.10x = 117,019.58 × 49,004.64
  4. Step 4: Simplify right side
    84,803.10x = 5,734,502,390.85
  5. Step 5: Solve for x
    x = 5,734,502,390.85/84,803.10
  6. Step 6: Final answer
    x = 67,621.38

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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.