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Finding the Fourth Proportional to 53,188.70, 73,400.02 and 29,315.40

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Solution

The fourth proportional to 53,188.70, 73,400.02 and 29,315.40 is: 40,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,188.70 : 73,400.02 = 29,315.40 : x
  2. Step 2: Convert to fraction form
    53,188.70/73,400.02 = 29,315.40/x
  3. Step 3: Cross multiply
    53,188.70x = 73,400.02 × 29,315.40
  4. Step 4: Simplify right side
    53,188.70x = 2,151,750,597.77
  5. Step 5: Solve for x
    x = 2,151,750,597.77/53,188.70
  6. Step 6: Final answer
    x = 40,455.04

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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.