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Finding the Fourth Proportional to 79,473.28, 109,666.32 and 45,482.08

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Solution

The fourth proportional to 79,473.28, 109,666.32 and 45,482.08 is: 62,761.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.28 : 109,666.32 = 45,482.08 : x
  2. Step 2: Convert to fraction form
    79,473.28/109,666.32 = 45,482.08/x
  3. Step 3: Cross multiply
    79,473.28x = 109,666.32 × 45,482.08
  4. Step 4: Simplify right side
    79,473.28x = 4,987,852,339.55
  5. Step 5: Solve for x
    x = 4,987,852,339.55/79,473.28
  6. Step 6: Final answer
    x = 62,761.38

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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.