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Finding the Fourth Proportional to 26,419.71, 36,459.20 and 14,482.79

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Solution

The fourth proportional to 26,419.71, 36,459.20 and 14,482.79 is: 19,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.71 : 36,459.20 = 14,482.79 : x
  2. Step 2: Convert to fraction form
    26,419.71/36,459.20 = 14,482.79/x
  3. Step 3: Cross multiply
    26,419.71x = 36,459.20 × 14,482.79
  4. Step 4: Simplify right side
    26,419.71x = 528,031,064.52
  5. Step 5: Solve for x
    x = 528,031,064.52/26,419.71
  6. Step 6: Final answer
    x = 19,986.26

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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.