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Finding the Fourth Proportional to 21,700.40, 32,461.48 and 17,326.40

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Solution

The fourth proportional to 21,700.40, 32,461.48 and 17,326.40 is: 25,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.40 : 32,461.48 = 17,326.40 : x
  2. Step 2: Convert to fraction form
    21,700.40/32,461.48 = 17,326.40/x
  3. Step 3: Cross multiply
    21,700.40x = 32,461.48 × 17,326.40
  4. Step 4: Simplify right side
    21,700.40x = 562,440,587.07
  5. Step 5: Solve for x
    x = 562,440,587.07/21,700.40
  6. Step 6: Final answer
    x = 25,918.44

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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.