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Finding the Fourth Proportional to 7,058.55, 9,740.46 and 3,914.67

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Solution

The fourth proportional to 7,058.55, 9,740.46 and 3,914.67 is: 5,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.55 : 9,740.46 = 3,914.67 : x
  2. Step 2: Convert to fraction form
    7,058.55/9,740.46 = 3,914.67/x
  3. Step 3: Cross multiply
    7,058.55x = 9,740.46 × 3,914.67
  4. Step 4: Simplify right side
    7,058.55x = 38,130,686.55
  5. Step 5: Solve for x
    x = 38,130,686.55/7,058.55
  6. Step 6: Final answer
    x = 5,402.06

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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.