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Finding the Fourth Proportional to 7,898.74, 10,899.30 and 5,026.48

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Solution

The fourth proportional to 7,898.74, 10,899.30 and 5,026.48 is: 6,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.74 : 10,899.30 = 5,026.48 : x
  2. Step 2: Convert to fraction form
    7,898.74/10,899.30 = 5,026.48/x
  3. Step 3: Cross multiply
    7,898.74x = 10,899.30 × 5,026.48
  4. Step 4: Simplify right side
    7,898.74x = 54,785,113.46
  5. Step 5: Solve for x
    x = 54,785,113.46/7,898.74
  6. Step 6: Final answer
    x = 6,935.93

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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.