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Finding the Fourth Proportional to 9,341.40, 13,995.90 and 8,045.40

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Solution

The fourth proportional to 9,341.40, 13,995.90 and 8,045.40 is: 12,054.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.40 : 13,995.90 = 8,045.40 : x
  2. Step 2: Convert to fraction form
    9,341.40/13,995.90 = 8,045.40/x
  3. Step 3: Cross multiply
    9,341.40x = 13,995.90 × 8,045.40
  4. Step 4: Simplify right side
    9,341.40x = 112,602,613.86
  5. Step 5: Solve for x
    x = 112,602,613.86/9,341.40
  6. Step 6: Final answer
    x = 12,054.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.