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Finding the Fourth Proportional to 84,527.86, 126,804.15 and 25,368.20

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Solution

The fourth proportional to 84,527.86, 126,804.15 and 25,368.20 is: 38,056.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,527.86 : 126,804.15 = 25,368.20 : x
  2. Step 2: Convert to fraction form
    84,527.86/126,804.15 = 25,368.20/x
  3. Step 3: Cross multiply
    84,527.86x = 126,804.15 × 25,368.20
  4. Step 4: Simplify right side
    84,527.86x = 3,216,793,038.03
  5. Step 5: Solve for x
    x = 3,216,793,038.03/84,527.86
  6. Step 6: Final answer
    x = 38,056.01

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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.