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Finding the Fourth Proportional to 60,547.43, 90,820.40 and 21,104.42

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Solution

The fourth proportional to 60,547.43, 90,820.40 and 21,104.42 is: 31,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,547.43 : 90,820.40 = 21,104.42 : x
  2. Step 2: Convert to fraction form
    60,547.43/90,820.40 = 21,104.42/x
  3. Step 3: Cross multiply
    60,547.43x = 90,820.40 × 21,104.42
  4. Step 4: Simplify right side
    60,547.43x = 1,916,711,306.54
  5. Step 5: Solve for x
    x = 1,916,711,306.54/60,547.43
  6. Step 6: Final answer
    x = 31,656.36

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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.