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Finding the Fourth Proportional to 60,606.27, 90,931.32 and 31,038.03

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Solution

The fourth proportional to 60,606.27, 90,931.32 and 31,038.03 is: 46,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,606.27 : 90,931.32 = 31,038.03 : x
  2. Step 2: Convert to fraction form
    60,606.27/90,931.32 = 31,038.03/x
  3. Step 3: Cross multiply
    60,606.27x = 90,931.32 × 31,038.03
  4. Step 4: Simplify right side
    60,606.27x = 2,822,329,038.10
  5. Step 5: Solve for x
    x = 2,822,329,038.10/60,606.27
  6. Step 6: Final answer
    x = 46,568.27

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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.