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Finding the Fourth Proportional to 19,407.70, 29,111.55 and 6,260.07

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Solution

The fourth proportional to 19,407.70, 29,111.55 and 6,260.07 is: 9,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.70 : 29,111.55 = 6,260.07 : x
  2. Step 2: Convert to fraction form
    19,407.70/29,111.55 = 6,260.07/x
  3. Step 3: Cross multiply
    19,407.70x = 29,111.55 × 6,260.07
  4. Step 4: Simplify right side
    19,407.70x = 182,240,340.81
  5. Step 5: Solve for x
    x = 182,240,340.81/19,407.70
  6. Step 6: Final answer
    x = 9,390.11

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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.