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Finding the Fourth Proportional to 1,165.86, 1,740.15 and 1,008.99

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Solution

The fourth proportional to 1,165.86, 1,740.15 and 1,008.99 is: 1,506.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.86 : 1,740.15 = 1,008.99 : x
  2. Step 2: Convert to fraction form
    1,165.86/1,740.15 = 1,008.99/x
  3. Step 3: Cross multiply
    1,165.86x = 1,740.15 × 1,008.99
  4. Step 4: Simplify right side
    1,165.86x = 1,755,793.95
  5. Step 5: Solve for x
    x = 1,755,793.95/1,165.86
  6. Step 6: Final answer
    x = 1,506.01

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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.