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Finding the Fourth Proportional to 7,058.58, 9,741.55 and 3,915.36

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Solution

The fourth proportional to 7,058.58, 9,741.55 and 3,915.36 is: 5,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.58 : 9,741.55 = 3,915.36 : x
  2. Step 2: Convert to fraction form
    7,058.58/9,741.55 = 3,915.36/x
  3. Step 3: Cross multiply
    7,058.58x = 9,741.55 × 3,915.36
  4. Step 4: Simplify right side
    7,058.58x = 38,141,675.21
  5. Step 5: Solve for x
    x = 38,141,675.21/7,058.58
  6. Step 6: Final answer
    x = 5,403.59

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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.