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Finding the Fourth Proportional to 30,417.40, 45,626.10 and 14,865.40

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Solution

The fourth proportional to 30,417.40, 45,626.10 and 14,865.40 is: 22,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.40 : 45,626.10 = 14,865.40 : x
  2. Step 2: Convert to fraction form
    30,417.40/45,626.10 = 14,865.40/x
  3. Step 3: Cross multiply
    30,417.40x = 45,626.10 × 14,865.40
  4. Step 4: Simplify right side
    30,417.40x = 678,250,226.94
  5. Step 5: Solve for x
    x = 678,250,226.94/30,417.40
  6. Step 6: Final answer
    x = 22,298.10

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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.