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Finding the Fourth Proportional to 7,901.56, 10,904.06 and 4,316.48

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Solution

The fourth proportional to 7,901.56, 10,904.06 and 4,316.48 is: 5,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.56 : 10,904.06 = 4,316.48 : x
  2. Step 2: Convert to fraction form
    7,901.56/10,904.06 = 4,316.48/x
  3. Step 3: Cross multiply
    7,901.56x = 10,904.06 × 4,316.48
  4. Step 4: Simplify right side
    7,901.56x = 47,067,080.81
  5. Step 5: Solve for x
    x = 47,067,080.81/7,901.56
  6. Step 6: Final answer
    x = 5,956.68

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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.