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Finding the Fourth Proportional to 9,521.86, 13,153.85 and 7,605.16

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Solution

The fourth proportional to 9,521.86, 13,153.85 and 7,605.16 is: 10,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.86 : 13,153.85 = 7,605.16 : x
  2. Step 2: Convert to fraction form
    9,521.86/13,153.85 = 7,605.16/x
  3. Step 3: Cross multiply
    9,521.86x = 13,153.85 × 7,605.16
  4. Step 4: Simplify right side
    9,521.86x = 100,037,119.99
  5. Step 5: Solve for x
    x = 100,037,119.99/9,521.86
  6. Step 6: Final answer
    x = 10,506.05

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Half scale
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Double scale
Find fourth proportional to 9,522.86, 13,155.23 and 7,606.16
Similar ratio
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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.