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Finding the Fourth Proportional to 29,693.40, 44,547.30 and 20,945.40

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Solution

The fourth proportional to 29,693.40, 44,547.30 and 20,945.40 is: 31,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,693.40 : 44,547.30 = 20,945.40 : x
  2. Step 2: Convert to fraction form
    29,693.40/44,547.30 = 20,945.40/x
  3. Step 3: Cross multiply
    29,693.40x = 44,547.30 × 20,945.40
  4. Step 4: Simplify right side
    29,693.40x = 933,061,017.42
  5. Step 5: Solve for x
    x = 933,061,017.42/29,693.40
  6. Step 6: Final answer
    x = 31,423.18

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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.