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Finding the Fourth Proportional to 7,058.64, 9,740.93 and 3,914.83

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Solution

The fourth proportional to 7,058.64, 9,740.93 and 3,914.83 is: 5,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.64 : 9,740.93 = 3,914.83 : x
  2. Step 2: Convert to fraction form
    7,058.64/9,740.93 = 3,914.83/x
  3. Step 3: Cross multiply
    7,058.64x = 9,740.93 × 3,914.83
  4. Step 4: Simplify right side
    7,058.64x = 38,134,077.59
  5. Step 5: Solve for x
    x = 38,134,077.59/7,058.64
  6. Step 6: Final answer
    x = 5,402.47

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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.