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Finding the Fourth Proportional to 47,328.70, 70,871.64 and 45,927.22

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Solution

The fourth proportional to 47,328.70, 70,871.64 and 45,927.22 is: 68,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,328.70 : 70,871.64 = 45,927.22 : x
  2. Step 2: Convert to fraction form
    47,328.70/70,871.64 = 45,927.22/x
  3. Step 3: Cross multiply
    47,328.70x = 70,871.64 × 45,927.22
  4. Step 4: Simplify right side
    47,328.70x = 3,254,937,402.04
  5. Step 5: Solve for x
    x = 3,254,937,402.04/47,328.70
  6. Step 6: Final answer
    x = 68,773.02

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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.