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Finding the Fourth Proportional to 30,681.70, 45,948.74 and 17,494.09

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Solution

The fourth proportional to 30,681.70, 45,948.74 and 17,494.09 is: 26,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681.70 : 45,948.74 = 17,494.09 : x
  2. Step 2: Convert to fraction form
    30,681.70/45,948.74 = 17,494.09/x
  3. Step 3: Cross multiply
    30,681.70x = 45,948.74 × 17,494.09
  4. Step 4: Simplify right side
    30,681.70x = 803,831,461.32
  5. Step 5: Solve for x
    x = 803,831,461.32/30,681.70
  6. Step 6: Final answer
    x = 26,199.05

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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.