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Finding the Fourth Proportional to 72,547.40, 108,839.46 and 35,125.40

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Solution

The fourth proportional to 72,547.40, 108,839.46 and 35,125.40 is: 52,696.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,547.40 : 108,839.46 = 35,125.40 : x
  2. Step 2: Convert to fraction form
    72,547.40/108,839.46 = 35,125.40/x
  3. Step 3: Cross multiply
    72,547.40x = 108,839.46 × 35,125.40
  4. Step 4: Simplify right side
    72,547.40x = 3,823,029,568.28
  5. Step 5: Solve for x
    x = 3,823,029,568.28/72,547.40
  6. Step 6: Final answer
    x = 52,696.99

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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.