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Finding the Fourth Proportional to 19,862.70, 29,752.65 and 9,341.70

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Solution

The fourth proportional to 19,862.70, 29,752.65 and 9,341.70 is: 13,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.70 : 29,752.65 = 9,341.70 : x
  2. Step 2: Convert to fraction form
    19,862.70/29,752.65 = 9,341.70/x
  3. Step 3: Cross multiply
    19,862.70x = 29,752.65 × 9,341.70
  4. Step 4: Simplify right side
    19,862.70x = 277,940,330.51
  5. Step 5: Solve for x
    x = 277,940,330.51/19,862.70
  6. Step 6: Final answer
    x = 13,993.08

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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.