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Finding the Fourth Proportional to 7,953.16, 10,980.74 and 4,973.48

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Solution

The fourth proportional to 7,953.16, 10,980.74 and 4,973.48 is: 6,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.16 : 10,980.74 = 4,973.48 : x
  2. Step 2: Convert to fraction form
    7,953.16/10,980.74 = 4,973.48/x
  3. Step 3: Cross multiply
    7,953.16x = 10,980.74 × 4,973.48
  4. Step 4: Simplify right side
    7,953.16x = 54,612,490.78
  5. Step 5: Solve for x
    x = 54,612,490.78/7,953.16
  6. Step 6: Final answer
    x = 6,866.77

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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.