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Finding the Fourth Proportional to 21,041.80, 29,023.14 and 17,063.08

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Solution

The fourth proportional to 21,041.80, 29,023.14 and 17,063.08 is: 23,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.80 : 29,023.14 = 17,063.08 : x
  2. Step 2: Convert to fraction form
    21,041.80/29,023.14 = 17,063.08/x
  3. Step 3: Cross multiply
    21,041.80x = 29,023.14 × 17,063.08
  4. Step 4: Simplify right side
    21,041.80x = 495,224,159.67
  5. Step 5: Solve for x
    x = 495,224,159.67/21,041.80
  6. Step 6: Final answer
    x = 23,535.26

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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.