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Finding the Fourth Proportional to 9,421.10, 14,058.18 and 9,356.30

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Solution

The fourth proportional to 9,421.10, 14,058.18 and 9,356.30 is: 13,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.10 : 14,058.18 = 9,356.30 : x
  2. Step 2: Convert to fraction form
    9,421.10/14,058.18 = 9,356.30/x
  3. Step 3: Cross multiply
    9,421.10x = 14,058.18 × 9,356.30
  4. Step 4: Simplify right side
    9,421.10x = 131,532,549.53
  5. Step 5: Solve for x
    x = 131,532,549.53/9,421.10
  6. Step 6: Final answer
    x = 13,961.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.