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Finding the Fourth Proportional to 5,010.95, 6,913.70 and 2,885.71

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Solution

The fourth proportional to 5,010.95, 6,913.70 and 2,885.71 is: 3,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.95 : 6,913.70 = 2,885.71 : x
  2. Step 2: Convert to fraction form
    5,010.95/6,913.70 = 2,885.71/x
  3. Step 3: Cross multiply
    5,010.95x = 6,913.70 × 2,885.71
  4. Step 4: Simplify right side
    5,010.95x = 19,950,901.51
  5. Step 5: Solve for x
    x = 19,950,901.51/5,010.95
  6. Step 6: Final answer
    x = 3,981.46

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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.