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Finding the Fourth Proportional to 9,925.10, 14,947.06 and 9,039.36

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Solution

The fourth proportional to 9,925.10, 14,947.06 and 9,039.36 is: 13,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,925.10 : 14,947.06 = 9,039.36 : x
  2. Step 2: Convert to fraction form
    9,925.10/14,947.06 = 9,039.36/x
  3. Step 3: Cross multiply
    9,925.10x = 14,947.06 × 9,039.36
  4. Step 4: Simplify right side
    9,925.10x = 135,111,811.08
  5. Step 5: Solve for x
    x = 135,111,811.08/9,925.10
  6. Step 6: Final answer
    x = 13,613.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.