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Finding the Fourth Proportional to 52,381.40, 72,103.76 and 45,655.34

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Solution

The fourth proportional to 52,381.40, 72,103.76 and 45,655.34 is: 62,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,381.40 : 72,103.76 = 45,655.34 : x
  2. Step 2: Convert to fraction form
    52,381.40/72,103.76 = 45,655.34/x
  3. Step 3: Cross multiply
    52,381.40x = 72,103.76 × 45,655.34
  4. Step 4: Simplify right side
    52,381.40x = 3,291,921,678.08
  5. Step 5: Solve for x
    x = 3,291,921,678.08/52,381.40
  6. Step 6: Final answer
    x = 62,845.24

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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.