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Finding the Fourth Proportional to 34,527.84, 47,649.83 and 19,421.20

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Solution

The fourth proportional to 34,527.84, 47,649.83 and 19,421.20 is: 26,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,527.84 : 47,649.83 = 19,421.20 : x
  2. Step 2: Convert to fraction form
    34,527.84/47,649.83 = 19,421.20/x
  3. Step 3: Cross multiply
    34,527.84x = 47,649.83 × 19,421.20
  4. Step 4: Simplify right side
    34,527.84x = 925,416,878.40
  5. Step 5: Solve for x
    x = 925,416,878.40/34,527.84
  6. Step 6: Final answer
    x = 26,802.05

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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.