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Finding the Fourth Proportional to 30,607.60, 45,875.40 and 17,472.40

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Solution

The fourth proportional to 30,607.60, 45,875.40 and 17,472.40 is: 26,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.60 : 45,875.40 = 17,472.40 : x
  2. Step 2: Convert to fraction form
    30,607.60/45,875.40 = 17,472.40/x
  3. Step 3: Cross multiply
    30,607.60x = 45,875.40 × 17,472.40
  4. Step 4: Simplify right side
    30,607.60x = 801,553,338.96
  5. Step 5: Solve for x
    x = 801,553,338.96/30,607.60
  6. Step 6: Final answer
    x = 26,188.05

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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.