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Finding the Fourth Proportional to 52,430.37, 78,632.37 and 14,990.64

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Solution

The fourth proportional to 52,430.37, 78,632.37 and 14,990.64 is: 22,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,430.37 : 78,632.37 = 14,990.64 : x
  2. Step 2: Convert to fraction form
    52,430.37/78,632.37 = 14,990.64/x
  3. Step 3: Cross multiply
    52,430.37x = 78,632.37 × 14,990.64
  4. Step 4: Simplify right side
    52,430.37x = 1,178,749,551.02
  5. Step 5: Solve for x
    x = 1,178,749,551.02/52,430.37
  6. Step 6: Final answer
    x = 22,482.19

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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.