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Finding the Fourth Proportional to 54,810.76, 75,638.72 and 29,660.28

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Solution

The fourth proportional to 54,810.76, 75,638.72 and 29,660.28 is: 40,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,810.76 : 75,638.72 = 29,660.28 : x
  2. Step 2: Convert to fraction form
    54,810.76/75,638.72 = 29,660.28/x
  3. Step 3: Cross multiply
    54,810.76x = 75,638.72 × 29,660.28
  4. Step 4: Simplify right side
    54,810.76x = 2,243,465,614.04
  5. Step 5: Solve for x
    x = 2,243,465,614.04/54,810.76
  6. Step 6: Final answer
    x = 40,931.12

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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.