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Finding the Fourth Proportional to 7,955.79, 10,979.04 and 4,973.37

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Solution

The fourth proportional to 7,955.79, 10,979.04 and 4,973.37 is: 6,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.79 : 10,979.04 = 4,973.37 : x
  2. Step 2: Convert to fraction form
    7,955.79/10,979.04 = 4,973.37/x
  3. Step 3: Cross multiply
    7,955.79x = 10,979.04 × 4,973.37
  4. Step 4: Simplify right side
    7,955.79x = 54,602,828.16
  5. Step 5: Solve for x
    x = 54,602,828.16/7,955.79
  6. Step 6: Final answer
    x = 6,863.28

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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.