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Finding the Fourth Proportional to 53,547.60, 80,244.60 and 39,397.20

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Solution

The fourth proportional to 53,547.60, 80,244.60 and 39,397.20 is: 59,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,547.60 : 80,244.60 = 39,397.20 : x
  2. Step 2: Convert to fraction form
    53,547.60/80,244.60 = 39,397.20/x
  3. Step 3: Cross multiply
    53,547.60x = 80,244.60 × 39,397.20
  4. Step 4: Simplify right side
    53,547.60x = 3,161,412,555.12
  5. Step 5: Solve for x
    x = 3,161,412,555.12/53,547.60
  6. Step 6: Final answer
    x = 59,039.30

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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.