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Finding the Fourth Proportional to 9,038.40, 12,472.86 and 5,004.84

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Solution

The fourth proportional to 9,038.40, 12,472.86 and 5,004.84 is: 6,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,038.40 : 12,472.86 = 5,004.84 : x
  2. Step 2: Convert to fraction form
    9,038.40/12,472.86 = 5,004.84/x
  3. Step 3: Cross multiply
    9,038.40x = 12,472.86 × 5,004.84
  4. Step 4: Simplify right side
    9,038.40x = 62,424,612.44
  5. Step 5: Solve for x
    x = 62,424,612.44/9,038.40
  6. Step 6: Final answer
    x = 6,906.60

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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.