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Finding the Fourth Proportional to 72,527.13, 100,087.11 and 40,696.11

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Solution

The fourth proportional to 72,527.13, 100,087.11 and 40,696.11 is: 56,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,527.13 : 100,087.11 = 40,696.11 : x
  2. Step 2: Convert to fraction form
    72,527.13/100,087.11 = 40,696.11/x
  3. Step 3: Cross multiply
    72,527.13x = 100,087.11 × 40,696.11
  4. Step 4: Simplify right side
    72,527.13x = 4,073,156,038.14
  5. Step 5: Solve for x
    x = 4,073,156,038.14/72,527.13
  6. Step 6: Final answer
    x = 56,160.45

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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.