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Finding the Fourth Proportional to 31,223.01, 46,840.30 and 9,881.10

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Solution

The fourth proportional to 31,223.01, 46,840.30 and 9,881.10 is: 14,823.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,223.01 : 46,840.30 = 9,881.10 : x
  2. Step 2: Convert to fraction form
    31,223.01/46,840.30 = 9,881.10/x
  3. Step 3: Cross multiply
    31,223.01x = 46,840.30 × 9,881.10
  4. Step 4: Simplify right side
    31,223.01x = 462,833,638.92
  5. Step 5: Solve for x
    x = 462,833,638.92/31,223.01
  6. Step 6: Final answer
    x = 14,823.48

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1.5x scale

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.